From d9cb84f4840c49993cfbcc80057488c50eae60cb Mon Sep 17 00:00:00 2001 From: "bernard.xiong@gmail.com" Date: Thu, 18 Nov 2010 11:31:54 +0000 Subject: [PATCH] add libc testcase. git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1061 bbd45198-f89e-11dd-88c7-29a3b14d5316 --- examples/libc/SConscript | 8 + examples/libc/dirent.c | 56 +++++ examples/libc/env.c | 18 ++ examples/libc/ex1.c | 37 +++ examples/libc/ex2.c | 114 +++++++++ examples/libc/ex3.c | 154 ++++++++++++ examples/libc/ex4.c | 108 ++++++++ examples/libc/ex5.c | 105 ++++++++ examples/libc/ex6.c | 37 +++ examples/libc/ex7.c | 101 ++++++++ examples/libc/file.c | 516 +++++++++++++++++++++++++++++++++++++++ examples/libc/memory.c | 54 ++++ examples/libc/printf.c | 200 +++++++++++++++ examples/libc/rand.c | 43 ++++ examples/libc/time.c | 24 ++ 15 files changed, 1575 insertions(+) create mode 100644 examples/libc/SConscript create mode 100644 examples/libc/dirent.c create mode 100644 examples/libc/env.c create mode 100644 examples/libc/ex1.c create mode 100644 examples/libc/ex2.c create mode 100644 examples/libc/ex3.c create mode 100644 examples/libc/ex4.c create mode 100644 examples/libc/ex5.c create mode 100644 examples/libc/ex6.c create mode 100644 examples/libc/ex7.c create mode 100644 examples/libc/file.c create mode 100644 examples/libc/memory.c create mode 100644 examples/libc/printf.c create mode 100644 examples/libc/rand.c create mode 100644 examples/libc/time.c diff --git a/examples/libc/SConscript b/examples/libc/SConscript new file mode 100644 index 0000000000..af43df3ddb --- /dev/null +++ b/examples/libc/SConscript @@ -0,0 +1,8 @@ +Import('env') + +src_local = Glob('*.c') + +# The set of source files associated with this SConscript file. +obj = env.Object(src_local) + +Return('obj') diff --git a/examples/libc/dirent.c b/examples/libc/dirent.c new file mode 100644 index 0000000000..a763ecb022 --- /dev/null +++ b/examples/libc/dirent.c @@ -0,0 +1,56 @@ +/* + * dirent.c + * + * Created on: 2010-11-17 + * Author: bernard + */ +#include +#include +#include + +#include +int libc_dirent() +{ + DIR * dirp; + long int save3 = 0; + long int cur; + int i = 0; + int result = 0; + struct dirent *dp; + + dirp = opendir("/"); + for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp)) + { + /* save position 3 (after fourth entry) */ + if (i++ == 3) + save3 = telldir(dirp); + + printf("%s\n", dp->d_name); + + /* stop at 400 (just to make sure dirp->__offset and dirp->__size are + scrambled */ + if (i == 400) + break; + } + + printf("going back past 4-th entry...\n"); + + /* go back to saved entry */ + seekdir(dirp, save3); + + /* Check whether telldir equals to save3 now. */ + cur = telldir(dirp); + if (cur != save3) + { + printf("seekdir (d, %ld); telldir (d) == %ld\n", save3, cur); + result = 1; + } + + /* print remaining files (3-last) */ + for (dp = readdir(dirp); dp != NULL; dp = readdir(dirp)) + printf("%s\n", dp->d_name); + + closedir(dirp); + return result; +} +FINSH_FUNCTION_EXPORT(libc_dirent, dirent test for libc); diff --git a/examples/libc/env.c b/examples/libc/env.c new file mode 100644 index 0000000000..56f906774f --- /dev/null +++ b/examples/libc/env.c @@ -0,0 +1,18 @@ +/* + * env.c + * + * Created on: 2010-11-17 + * Author: bernard + */ +#include +#include +#include + +int libc_env() +{ + printf("PATH=%s\n", getenv("PATH")); + putenv("foo=bar"); + printf("foo=%s\n", getenv("foo")); + return 0; +} +FINSH_FUNCTION_EXPORT(libc_env, get/set_env test); diff --git a/examples/libc/ex1.c b/examples/libc/ex1.c new file mode 100644 index 0000000000..2acbfc3a39 --- /dev/null +++ b/examples/libc/ex1.c @@ -0,0 +1,37 @@ +/* Creates two threads, one printing 10000 "a"s, the other printing + 10000 "b"s. + Illustrates: thread creation, thread joining. */ + +#include +#include +#include +#include "pthread.h" + +static void *process(void * arg) +{ + int i; + printf("Starting process %s\n", (char *)arg); + for (i = 0; i < 10000; i++) + write(1, (char *) arg, 1); + return NULL; +} + +#define sucfail(r) (r != 0 ? "failed" : "succeeded") +int libc_ex1(void) +{ + int pret, ret = 0; + pthread_t th_a, th_b; + void *retval; + + ret += (pret = pthread_create(&th_a, NULL, process, (void *)"a")); + printf("create a %s %d\n", sucfail(pret), pret); + ret += (pret = pthread_create(&th_b, NULL, process, (void *)"b")); + printf("create b %s %d\n", sucfail(pret), pret); + ret += (pret = pthread_join(th_a, &retval)); + printf("join a %s %d\n", sucfail(pret), pret); + ret += (pret = pthread_join(th_b, &retval)); + printf("join b %s %d\n", sucfail(pret), pret); + return ret; +} +#include +FINSH_FUNCTION_EXPORT(libc_ex1, example 1 for libc); diff --git a/examples/libc/ex2.c b/examples/libc/ex2.c new file mode 100644 index 0000000000..925f4e1f23 --- /dev/null +++ b/examples/libc/ex2.c @@ -0,0 +1,114 @@ +/* The classic producer-consumer example. + Illustrates mutexes and conditions. + All integers between 0 and 9999 should be printed exactly twice, + once to the right of the arrow and once to the left. */ + +#include +#include "pthread.h" + +#define BUFFER_SIZE 16 + +/* Circular buffer of integers. */ + +struct prodcons { + int buffer[BUFFER_SIZE]; /* the actual data */ + pthread_mutex_t lock; /* mutex ensuring exclusive access to buffer */ + int readpos, writepos; /* positions for reading and writing */ + pthread_cond_t notempty; /* signaled when buffer is not empty */ + pthread_cond_t notfull; /* signaled when buffer is not full */ +}; + +/* Initialize a buffer */ + +static void init(struct prodcons * b) +{ + pthread_mutex_init(&b->lock, NULL); + pthread_cond_init(&b->notempty, NULL); + pthread_cond_init(&b->notfull, NULL); + b->readpos = 0; + b->writepos = 0; +} + +/* Store an integer in the buffer */ +static void put(struct prodcons * b, int data) +{ + pthread_mutex_lock(&b->lock); + /* Wait until buffer is not full */ + while ((b->writepos + 1) % BUFFER_SIZE == b->readpos) { + pthread_cond_wait(&b->notfull, &b->lock); + /* pthread_cond_wait reacquired b->lock before returning */ + } + /* Write the data and advance write pointer */ + b->buffer[b->writepos] = data; + b->writepos++; + if (b->writepos >= BUFFER_SIZE) b->writepos = 0; + /* Signal that the buffer is now not empty */ + pthread_cond_signal(&b->notempty); + pthread_mutex_unlock(&b->lock); +} + +/* Read and remove an integer from the buffer */ + +static int get(struct prodcons * b) +{ + int data; + pthread_mutex_lock(&b->lock); + /* Wait until buffer is not empty */ + while (b->writepos == b->readpos) { + pthread_cond_wait(&b->notempty, &b->lock); + } + /* Read the data and advance read pointer */ + data = b->buffer[b->readpos]; + b->readpos++; + if (b->readpos >= BUFFER_SIZE) b->readpos = 0; + /* Signal that the buffer is now not full */ + pthread_cond_signal(&b->notfull); + pthread_mutex_unlock(&b->lock); + return data; +} + +/* A test program: one thread inserts integers from 1 to 10000, + the other reads them and prints them. */ + +#define OVER (-1) + +struct prodcons buffer; + +static void * producer(void * data) +{ + int n; + for (n = 0; n < 10000; n++) { + printf("%d --->\n", n); + put(&buffer, n); + } + put(&buffer, OVER); + return NULL; +} + +static void * consumer(void * data) +{ + int d; + while (1) { + d = get(&buffer); + if (d == OVER) break; + printf("---> %d\n", d); + } + return NULL; +} + +int libc_ex2(void) +{ + pthread_t th_a, th_b; + void * retval; + + init(&buffer); + /* Create the threads */ + pthread_create(&th_a, NULL, producer, 0); + pthread_create(&th_b, NULL, consumer, 0); + /* Wait until producer and consumer finish. */ + pthread_join(th_a, &retval); + pthread_join(th_b, &retval); + return 0; +} +#include +FINSH_FUNCTION_EXPORT(libc_ex2, example 2 for libc); diff --git a/examples/libc/ex3.c b/examples/libc/ex3.c new file mode 100644 index 0000000000..e4e3405d20 --- /dev/null +++ b/examples/libc/ex3.c @@ -0,0 +1,154 @@ +/* Multi-thread searching. + Illustrates: thread cancellation, cleanup handlers. */ + +#include +#include +#include +#include +#include +#include + +/* Defines the number of searching threads */ +#define NUM_THREADS 5 + +/* Function prototypes */ +void *search(void *); +void print_it(void *); + +/* Global variables */ +pthread_t threads[NUM_THREADS]; +pthread_mutex_t lock; +int tries; +volatile int started; + +int libc_ex3() +{ + int i; + int pid; + + /* create a number to search for */ + pid = getpid(); + printf("Searching for the number = %d...\n", pid); + + /* Initialize the mutex lock */ + pthread_mutex_init(&lock, NULL); + + /* Create the searching threads */ + for (started=0; started +FINSH_FUNCTION_EXPORT(libc_ex3, example 5 for libc); + +/* This is the cleanup function that is called + when the threads are cancelled */ + +void print_it(void *arg) +{ + int *try = (int *) arg; + pthread_t tid; + + /* Get the calling thread's ID */ + tid = pthread_self(); + + /* Print where the thread was in its search when it was cancelled */ + printf("Thread %lx was canceled on its %d try.\n", tid, *try); +} + +/* This is the search routine that is executed in each thread */ + +void *search(void *arg) +{ + int num = (int) arg; + int i, j, ntries; + pthread_t tid; + + /* get the calling thread ID */ + tid = pthread_self(); + + /* use the thread ID to set the seed for the random number generator */ + /* Since srand and rand are not thread-safe, serialize with lock */ + + /* Try to lock the mutex lock -- + if locked, check to see if the thread has been cancelled + if not locked then continue */ + while (pthread_mutex_trylock(&lock) == EBUSY) + pthread_testcancel(); + + srand((int)tid); + i = rand() & 0xFFFFFF; + pthread_mutex_unlock(&lock); + ntries = 0; + + /* Set the cancellation parameters -- + - Enable thread cancellation + - Defer the action of the cancellation */ + + pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL); + pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL); + + while (started < NUM_THREADS) + sched_yield (); + + /* Push the cleanup routine (print_it) onto the thread + cleanup stack. This routine will be called when the + thread is cancelled. Also note that the pthread_cleanup_push + call must have a matching pthread_cleanup_pop call. The + push and pop calls MUST be at the same lexical level + within the code */ + + /* Pass address of `ntries' since the current value of `ntries' is not + the one we want to use in the cleanup function */ + + pthread_cleanup_push(print_it, (void *)&ntries); + + /* Loop forever */ + while (1) { + i = (i + 1) & 0xFFFFFF; + ntries++; + + /* Does the random number match the target number? */ + if (num == i) { + /* Try to lock the mutex lock -- + if locked, check to see if the thread has been cancelled + if not locked then continue */ + while (pthread_mutex_trylock(&lock) == EBUSY) + pthread_testcancel(); + + /* Set the global variable for the number of tries */ + tries = ntries; + printf("Thread %lx found the number!\n", tid); + + /* Cancel all the other threads */ + for (j=0; j +#include +#include +#include +#include + +/* This is a typical example of a library function that uses + static variables to accumulate results between calls. + Here, it just returns the concatenation of all string arguments + that were given to it. */ + +#if 0 + +char * str_accumulate(char * s) +{ + static char accu[1024] = { 0 }; + strcat(accu, s); + return accu; +} + +#endif + +/* Of course, this cannot be used in a multi-threaded program + because all threads store "accu" at the same location. + So, we'll use thread-specific data to have a different "accu" + for each thread. */ + +/* Key identifying the thread-specific data */ +static pthread_key_t str_key; +/* "Once" variable ensuring that the key for str_alloc will be allocated + exactly once. */ +static pthread_once_t str_alloc_key_once = PTHREAD_ONCE_INIT; + +/* Forward functions */ +static void str_alloc_key(void); +static void str_alloc_destroy_accu(void * accu); + +/* Thread-safe version of str_accumulate */ + +char * str_accumulate(const char * s) +{ + char * accu; + + /* Make sure the key is allocated */ + pthread_once(&str_alloc_key_once, str_alloc_key); + /* Get the thread-specific data associated with the key */ + accu = (char *) pthread_getspecific(str_key); + /* It's initially NULL, meaning that we must allocate the buffer first. */ + if (accu == NULL) { + accu = malloc(1024); + if (accu == NULL) return NULL; + accu[0] = 0; + /* Store the buffer pointer in the thread-specific data. */ + pthread_setspecific(str_key, (void *) accu); + printf("Thread %lx: allocating buffer at %p\n", pthread_self(), accu); + } + /* Now we can use accu just as in the non thread-safe code. */ + strcat(accu, s); + return accu; +} + +/* Function to allocate the key for str_alloc thread-specific data. */ + +static void str_alloc_key(void) +{ + pthread_key_create(&str_key, str_alloc_destroy_accu); + printf("Thread %lx: allocated key %d\n", pthread_self(), str_key); +} + +/* Function to free the buffer when the thread exits. */ +/* Called only when the thread-specific data is not NULL. */ + +static void str_alloc_destroy_accu(void * accu) +{ + printf("Thread %lx: freeing buffer at %p\n", pthread_self(), accu); + free(accu); +} + +/* Test program */ + +static void *process(void * arg) +{ + char *res; + res = str_accumulate("Result of "); + res = str_accumulate((char *) arg); + res = str_accumulate(" thread"); + printf("Thread %lx: \"%s\"\n", pthread_self(), res); + return NULL; +} + +int libc_ex4() +{ + char * res; + pthread_t th1, th2; + + // res = str_accumulate("Result of "); + pthread_create(&th1, NULL, process, (void *) "first"); + pthread_create(&th2, NULL, process, (void *) "second"); + // res = str_accumulate("initial thread"); + printf("Thread %lx: \"%s\"\n", pthread_self(), res); + pthread_join(th1, NULL); + pthread_join(th2, NULL); +} +#include +FINSH_FUNCTION_EXPORT(libc_ex4, example 4 for libc); diff --git a/examples/libc/ex5.c b/examples/libc/ex5.c new file mode 100644 index 0000000000..aa94c34063 --- /dev/null +++ b/examples/libc/ex5.c @@ -0,0 +1,105 @@ +/* The classic producer-consumer example, implemented with semaphores. + All integers between 0 and 9999 should be printed exactly twice, + once to the right of the arrow and once to the left. */ + +#include +#include "pthread.h" +#include "semaphore.h" + +#define BUFFER_SIZE 16 + +/* Circular buffer of integers. */ + +struct prodcons { + int buffer[BUFFER_SIZE]; /* the actual data */ + int readpos, writepos; /* positions for reading and writing */ + sem_t sem_read; /* number of elements available for reading */ + sem_t sem_write; /* number of locations available for writing */ +}; + +/* Initialize a buffer */ + +void init(struct prodcons * b) +{ + sem_init(&b->sem_write, 0, BUFFER_SIZE - 1); + sem_init(&b->sem_read, 0, 0); + b->readpos = 0; + b->writepos = 0; +} + +/* Store an integer in the buffer */ + +void put(struct prodcons * b, int data) +{ + /* Wait until buffer is not full */ + sem_wait(&b->sem_write); + /* Write the data and advance write pointer */ + b->buffer[b->writepos] = data; + b->writepos++; + if (b->writepos >= BUFFER_SIZE) b->writepos = 0; + /* Signal that the buffer contains one more element for reading */ + sem_post(&b->sem_read); +} + +/* Read and remove an integer from the buffer */ + +int get(struct prodcons * b) +{ + int data; + /* Wait until buffer is not empty */ + sem_wait(&b->sem_read); + /* Read the data and advance read pointer */ + data = b->buffer[b->readpos]; + b->readpos++; + if (b->readpos >= BUFFER_SIZE) b->readpos = 0; + /* Signal that the buffer has now one more location for writing */ + sem_post(&b->sem_write); + return data; +} + +/* A test program: one thread inserts integers from 1 to 10000, + the other reads them and prints them. */ + +#define OVER (-1) + +struct prodcons buffer; + +static void *producer(void * data) +{ + int n; + for (n = 0; n < 10000; n++) { + printf("%d --->\n", n); + put(&buffer, n); + } + put(&buffer, OVER); + return NULL; +} + +static void *consumer(void * data) +{ + int d; + while (1) { + d = get(&buffer); + if (d == OVER) break; + printf("---> %d\n", d); + } + return NULL; +} + +int libc_ex5(void) +{ + pthread_t th_a, th_b; + void * retval; + + init(&buffer); + /* Create the threads */ + pthread_create(&th_a, NULL, producer, 0); + pthread_create(&th_b, NULL, consumer, 0); + /* Wait until producer and consumer finish. */ + pthread_join(th_a, &retval); + pthread_join(th_b, &retval); + return 0; +} +#include +FINSH_FUNCTION_EXPORT(libc_ex5, example 5 for libc); + diff --git a/examples/libc/ex6.c b/examples/libc/ex6.c new file mode 100644 index 0000000000..dea6ead8cb --- /dev/null +++ b/examples/libc/ex6.c @@ -0,0 +1,37 @@ +#include +#include +#include +#include +#include + +#define usleep rt_thread_sleep + +static void *test_thread(void *v_param) { + return NULL; +} + +int libc_ex6(void) { + unsigned long count; + + setvbuf(stdout, NULL, _IONBF, 0); + + for (count = 0; count < 2000; ++count) { + pthread_t thread; + int status; + + status = pthread_create(&thread, NULL, test_thread, NULL); + if (status != 0) { + printf("status = %d, count = %lu: %s\n", status, count, strerror( + errno)); + return 1; + } else { + printf("count = %lu\n", count); + } + /* pthread_detach (thread); */ + pthread_join(thread, NULL); + usleep(10); + } + return 0; +} +#include +FINSH_FUNCTION_EXPORT(libc_ex6, example 6 for libc); diff --git a/examples/libc/ex7.c b/examples/libc/ex7.c new file mode 100644 index 0000000000..859d18e7bd --- /dev/null +++ b/examples/libc/ex7.c @@ -0,0 +1,101 @@ +/* ex7 + * + * Test case that illustrates a timed wait on a condition variable. + */ + +#include +#include +#include +#include +#include +#include + +#define usleep rt_thread_sleep + +/* Our event variable using a condition variable contruct. */ +typedef struct { + pthread_mutex_t mutex; + pthread_cond_t cond; + int flag; +} event_t; + +/* Global event to signal main thread the timeout of the child thread. */ +event_t main_event; + +static void *test_thread(void *ms_param) { + int status = 0; + event_t foo; + struct timespec time; + struct timeval now; + long ms = (long) ms_param; + + /* initialize cond var */ + pthread_cond_init(&foo.cond, NULL); + pthread_mutex_init(&foo.mutex, NULL); + foo.flag = 0; + + /* set the time out value */ + printf("waiting %ld ms ...\n", ms); + gettimeofday(&now, NULL); + time.tv_sec = now.tv_sec + ms / 1000 + (now.tv_usec + (ms % 1000) * 1000) + / 1000000; + time.tv_nsec = ((now.tv_usec + (ms % 1000) * 1000) % 1000000) * 1000; + + /* Just use this to test the time out. The cond var is never signaled. */ + pthread_mutex_lock(&foo.mutex); + while (foo.flag == 0 && status != ETIMEDOUT) { + status = pthread_cond_timedwait(&foo.cond, &foo.mutex, &time); + } + pthread_mutex_unlock(&foo.mutex); + + /* post the main event */ + pthread_mutex_lock(&main_event.mutex); + main_event.flag = 1; + pthread_cond_signal(&main_event.cond); + pthread_mutex_unlock(&main_event.mutex); + + /* that's it, bye */ + return (void*) status; +} + +int libc_ex7(void) { + unsigned long count; + + setvbuf(stdout, NULL, _IONBF, 0); + + /* initialize main event cond var */ + pthread_cond_init(&main_event.cond, NULL); + pthread_mutex_init(&main_event.mutex, NULL); + main_event.flag = 0; + + for (count = 0; count < 20; ++count) { + pthread_t thread; + int status; + + /* pass down the milli-second timeout in the void* param */ + status = pthread_create(&thread, NULL, test_thread, (void*) (count + * 100)); + if (status != 0) { + printf("status = %d, count = %lu: %s\n", status, count, strerror( + errno)); + return 1; + } else { + + /* wait for the event posted by the child thread */ + pthread_mutex_lock(&main_event.mutex); + while (main_event.flag == 0) { + pthread_cond_wait(&main_event.cond, &main_event.mutex); + } + main_event.flag = 0; + pthread_mutex_unlock(&main_event.mutex); + + printf("count = %lu\n", count); + } + + usleep(10); + } + + return 0; +} +#include +FINSH_FUNCTION_EXPORT(libc_ex7, example 7 for libc); diff --git a/examples/libc/file.c b/examples/libc/file.c new file mode 100644 index 0000000000..94aa206ce9 --- /dev/null +++ b/examples/libc/file.c @@ -0,0 +1,516 @@ +/* + * fstat.c + * + * Created on: 2010-11-17 + * Author: bernard + */ +#include +#include +#include +#include +#include +#include + +const char* text = "this is a test string\n"; +void libc_fstat() +{ + int fd; + struct stat s; + + fd = open("/tmp/tt.txt", O_WRONLY | O_CREAT, 0); + if (fd < 0) + { + printf("open failed\n"); + return; + } + + write(fd, text, strlen(text) + 1); + printf("begin: %d\n", lseek(fd, 0, SEEK_SET)); + printf("end: %d\n", lseek(fd, 0, SEEK_END)); + + printf("fstat result: %d\n", fstat(fd, &s)); + close(fd); +} +FINSH_FUNCTION_EXPORT(libc_fstat, fstat test for libc); + +void libc_lseek() +{ + int fd; + + fd = open("/tmp/tt.txt", O_WRONLY | O_CREAT, 0); + if (fd < 0) + { + printf("open failed\n"); + return; + } + + write(fd, text, strlen(text) + 1); + printf("begin: %d\n", lseek(fd, 0, SEEK_SET)); + printf("end: %d\n", lseek(fd, 0, SEEK_END)); + close(fd); +} +FINSH_FUNCTION_EXPORT(libc_lseek, lseek test for libc); + +void sleep(int tick) +{ + rt_thread_sleep(tick); +} + +int libc_fseek(void) +{ + const char *tmpdir; + char *fname; + int fd; + FILE *fp; + const char outstr[] = "hello world!\n"; + char strbuf[sizeof outstr]; + char buf[200]; + struct stat st1; + struct stat st2; + int result = 0; + + tmpdir = getenv("TMPDIR"); + if (tmpdir == NULL || tmpdir[0] == '\0') + tmpdir = "/tmp"; + + asprintf(&fname, "%s/tst-fseek.XXXXXX", tmpdir); + if (fname == NULL) + { + fprintf(stderr, "cannot generate name for temporary file: %s\n", + strerror(errno)); + return 1; + } + + /* Create a temporary file. */ + fd = mkstemp(fname); + if (fd == -1) + { + fprintf(stderr, "cannot open temporary file: %s\n", strerror(errno)); + return 1; + } + + fp = fdopen(fd, "w+"); + if (fp == NULL) + { + fprintf(stderr, "cannot get FILE for temporary file: %s\n", strerror( + errno)); + return 1; + } + setbuffer(fp, strbuf, sizeof(outstr) - 1); + + if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1) + { + printf("%d: write error\n", __LINE__); + result = 1; + goto out; + } + + /* The EOF flag must be reset. */ + if (fgetc(fp) != EOF) + { + printf("%d: managed to read at end of file\n", __LINE__); + result = 1; + } + else if (!feof(fp)) + { + printf("%d: EOF flag not set\n", __LINE__); + result = 1; + } + if (fseek(fp, 0, SEEK_CUR) != 0) + { + printf("%d: fseek(fp, 0, SEEK_CUR) failed\n", __LINE__); + result = 1; + } + else if (feof(fp)) + { + printf("%d: fseek() didn't reset EOF flag\n", __LINE__); + result = 1; + } + + /* Do the same for fseeko(). */ + if (fgetc(fp) != EOF) + { + printf("%d: managed to read at end of file\n", __LINE__); + result = 1; + } + else if (!feof(fp)) + { + printf("%d: EOF flag not set\n", __LINE__); + result = 1; + } + if (fseeko(fp, 0, SEEK_CUR) != 0) + { + printf("%d: fseek(fp, 0, SEEK_CUR) failed\n", __LINE__); + result = 1; + } + else if (feof(fp)) + { + printf("%d: fseek() didn't reset EOF flag\n", __LINE__); + result = 1; + } + + /* Go back to the beginning of the file: absolute. */ + if (fseek(fp, 0, SEEK_SET) != 0) + { + printf("%d: fseek(fp, 0, SEEK_SET) failed\n", __LINE__); + result = 1; + } + else if (fflush(fp) != 0) + { + printf("%d: fflush() failed\n", __LINE__); + result = 1; + } + else if (lseek(fd, 0, SEEK_CUR) != 0) + { + int pos = lseek(fd, 0, SEEK_CUR); + printf("%d: lseek() returned different position, pos %d\n", __LINE__, + pos); + result = 1; + } + else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1) + { + printf("%d: fread() failed\n", __LINE__); + result = 1; + } + else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0) + { + printf("%d: content after fseek(,,SEEK_SET) wrong\n", __LINE__); + result = 1; + } + + /* Now with fseeko. */ + if (fseeko(fp, 0, SEEK_SET) != 0) + { + printf("%d: fseeko(fp, 0, SEEK_SET) failed\n", __LINE__); + result = 1; + } + else if (fflush(fp) != 0) + { + printf("%d: fflush() failed\n", __LINE__); + result = 1; + } + else if (lseek(fd, 0, SEEK_CUR) != 0) + { + printf("%d: lseek() returned different position\n", __LINE__); + result = 1; + } + else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1) + { + printf("%d: fread() failed\n", __LINE__); + result = 1; + } + else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0) + { + printf("%d: content after fseeko(,,SEEK_SET) wrong\n", __LINE__); + result = 1; + } + + /* Go back to the beginning of the file: relative. */ + if (fseek(fp, -((int) sizeof(outstr) - 1), SEEK_CUR) != 0) + { + printf("%d: fseek(fp, 0, SEEK_SET) failed\n", __LINE__); + result = 1; + } + else if (fflush(fp) != 0) + { + printf("%d: fflush() failed\n", __LINE__); + result = 1; + } + else if (lseek(fd, 0, SEEK_CUR) != 0) + { + printf("%d: lseek() returned different position\n", __LINE__); + result = 1; + } + else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1) + { + printf("%d: fread() failed\n", __LINE__); + result = 1; + } + else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0) + { + printf("%d: content after fseek(,,SEEK_SET) wrong\n", __LINE__); + result = 1; + } + + /* Now with fseeko. */ + if (fseeko(fp, -((int) sizeof(outstr) - 1), SEEK_CUR) != 0) + { + printf("%d: fseeko(fp, 0, SEEK_SET) failed\n", __LINE__); + result = 1; + } + else if (fflush(fp) != 0) + { + printf("%d: fflush() failed\n", __LINE__); + result = 1; + } + else if (lseek(fd, 0, SEEK_CUR) != 0) + { + printf("%d: lseek() returned different position\n", __LINE__); + result = 1; + } + else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1) + { + printf("%d: fread() failed\n", __LINE__); + result = 1; + } + else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0) + { + printf("%d: content after fseeko(,,SEEK_SET) wrong\n", __LINE__); + result = 1; + } + + /* Go back to the beginning of the file: from the end. */ + if (fseek(fp, -((int) sizeof(outstr) - 1), SEEK_END) != 0) + { + printf("%d: fseek(fp, 0, SEEK_SET) failed\n", __LINE__); + result = 1; + } + else if (fflush(fp) != 0) + { + printf("%d: fflush() failed\n", __LINE__); + result = 1; + } + else if (lseek(fd, 0, SEEK_CUR) != 0) + { + printf("%d: lseek() returned different position\n", __LINE__); + result = 1; + } + else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1) + { + printf("%d: fread() failed\n", __LINE__); + result = 1; + } + else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0) + { + printf("%d: content after fseek(,,SEEK_SET) wrong\n", __LINE__); + result = 1; + } + + /* Now with fseeko. */ + if (fseeko(fp, -((int) sizeof(outstr) - 1), SEEK_END) != 0) + { + printf("%d: fseeko(fp, 0, SEEK_SET) failed\n", __LINE__); + result = 1; + } + else if (fflush(fp) != 0) + { + printf("%d: fflush() failed\n", __LINE__); + result = 1; + } + else if (lseek(fd, 0, SEEK_CUR) != 0) + { + printf("%d: lseek() returned different position\n", __LINE__); + result = 1; + } + else if (fread(buf, sizeof(outstr) - 1, 1, fp) != 1) + { + printf("%d: fread() failed\n", __LINE__); + result = 1; + } + else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0) + { + printf("%d: content after fseeko(,,SEEK_SET) wrong\n", __LINE__); + result = 1; + } + + if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1) + { + printf("%d: write error 2\n", __LINE__); + result = 1; + goto out; + } + + if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1) + { + printf("%d: write error 3\n", __LINE__); + result = 1; + goto out; + } + + if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1) + { + printf("%d: write error 4\n", __LINE__); + result = 1; + goto out; + } + + if (fwrite(outstr, sizeof(outstr) - 1, 1, fp) != 1) + { + printf("%d: write error 5\n", __LINE__); + result = 1; + goto out; + } + + if (fputc('1', fp) == EOF || fputc('2', fp) == EOF) + { + printf("%d: cannot add characters at the end\n", __LINE__); + result = 1; + goto out; + } + + /* Check the access time. */ + if (fstat(fd, &st1) < 0) + { + printf("%d: fstat64() before fseeko() failed\n\n", __LINE__); + result = 1; + } + else + { + sleep(1); + + if (fseek(fp, -(2 + 2 * (sizeof(outstr) - 1)), SEEK_CUR) != 0) + { + printf("%d: fseek() after write characters failed\n", __LINE__); + result = 1; + goto out; + } + else + { + + time_t t; + /* Make sure the timestamp actually can be different. */ + sleep(1); + t = time(NULL); + + if (fstat(fd, &st2) < 0) + { + printf("%d: fstat64() after fseeko() failed\n\n", __LINE__); + result = 1; + } + if (st1.st_ctime >= t) + { + printf("%d: st_ctime not updated\n", __LINE__); + result = 1; + } + if (st1.st_mtime >= t) + { + printf("%d: st_mtime not updated\n", __LINE__); + result = 1; + } + if (st1.st_ctime >= st2.st_ctime) + { + printf("%d: st_ctime not changed\n", __LINE__); + result = 1; + } + if (st1.st_mtime >= st2.st_mtime) + { + printf("%d: st_mtime not changed\n", __LINE__); + result = 1; + } + } + } + + if (fread(buf, 1, 2 + 2 * (sizeof(outstr) - 1), fp) != 2 + 2 + * (sizeof(outstr) - 1)) + { + printf("%d: reading 2 records plus bits failed\n", __LINE__); + result = 1; + } + else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0 || memcmp( + &buf[sizeof(outstr) - 1], outstr, sizeof(outstr) - 1) != 0 || buf[2 + * (sizeof(outstr) - 1)] != '1' || buf[2 * (sizeof(outstr) - 1) + 1] + != '2') + { + printf("%d: reading records failed\n", __LINE__); + result = 1; + } + else if (ungetc('9', fp) == EOF) + { + printf("%d: ungetc() failed\n", __LINE__); + result = 1; + } + else if (fseek(fp, -(2 + 2 * (sizeof(outstr) - 1)), SEEK_END) != 0) + { + printf("%d: fseek after ungetc failed\n", __LINE__); + result = 1; + } + else if (fread(buf, 1, 2 + 2 * (sizeof(outstr) - 1), fp) != 2 + 2 + * (sizeof(outstr) - 1)) + { + printf("%d: reading 2 records plus bits failed\n", __LINE__); + result = 1; + } + else if (memcmp(buf, outstr, sizeof(outstr) - 1) != 0 || memcmp( + &buf[sizeof(outstr) - 1], outstr, sizeof(outstr) - 1) != 0 || buf[2 + * (sizeof(outstr) - 1)] != '1') + { + printf("%d: reading records for the second time failed\n", __LINE__); + result = 1; + } + else if (buf[2 * (sizeof(outstr) - 1) + 1] == '9') + { + printf("%d: unget character not ignored\n", __LINE__); + result = 1; + } + else if (buf[2 * (sizeof(outstr) - 1) + 1] != '2') + { + printf("%d: unget somehow changed character\n", __LINE__); + result = 1; + } + + fclose(fp); + + fp = fopen(fname, "r"); + if (fp == NULL) + { + printf("%d: fopen() failed\n\n", __LINE__); + result = 1; + } + else if (fstat(fileno(fp), &st1) < 0) + { + printf("%d: fstat64() before fseeko() failed\n\n", __LINE__); + result = 1; + } + else if (fseeko(fp, 0, SEEK_END) != 0) + { + printf("%d: fseeko(fp, 0, SEEK_END) failed\n", __LINE__); + result = 1; + } + else if (ftello(fp) != st1.st_size) + { + printf("%d: fstat64 st_size %zd ftello %zd\n", __LINE__, + (size_t) st1.st_size, (size_t) ftello(fp)); + result = 1; + } + else + printf("%d: SEEK_END works\n", __LINE__); + if (fp != NULL) + fclose(fp); + + fp = fopen(fname, "r"); + if (fp == NULL) + { + printf("%d: fopen() failed\n\n", __LINE__); + result = 1; + } + else if (fstat(fileno(fp), &st1) < 0) + { + printf("%d: fstat64() before fgetc() failed\n\n", __LINE__); + result = 1; + } + else if (fgetc(fp) == EOF) + { + printf("%d: fgetc() before fseeko() failed\n\n", __LINE__); + result = 1; + } + else if (fseeko(fp, 0, SEEK_END) != 0) + { + printf("%d: fseeko(fp, 0, SEEK_END) failed\n", __LINE__); + result = 1; + } + else if (ftello(fp) != st1.st_size) + { + printf("%d: fstat64 st_size %zd ftello %zd\n", __LINE__, + (size_t) st1.st_size, (size_t) ftello(fp)); + result = 1; + } + else + printf("%d: SEEK_END works\n", __LINE__); + if (fp != NULL) + fclose(fp); + + out: unlink(fname); + + return result; +} +FINSH_FUNCTION_EXPORT(libc_fseek, lseek test for libc); diff --git a/examples/libc/memory.c b/examples/libc/memory.c new file mode 100644 index 0000000000..0a0bfecd80 --- /dev/null +++ b/examples/libc/memory.c @@ -0,0 +1,54 @@ +/* + * memory.c + * + * Created on: 2010-11-17 + * Author: bernard + */ +#include +#include +#include +#include + +static int errors = 0; +static void merror(const char *msg) +{ + ++errors; + printf("Error: %s\n", msg); +} + +int libc_mem(void) +{ + void *p; + int save; + + errno = 0; + + p = malloc(-1); + save = errno; + + if (p != NULL) + merror("malloc (-1) succeeded."); + + if (p == NULL && save != ENOMEM) + merror("errno is not set correctly"); + + p = malloc(10); + if (p == NULL) + merror("malloc (10) failed."); + + /* realloc (p, 0) == free (p). */ + p = realloc(p, 0); + if (p != NULL) + merror("realloc (p, 0) failed."); + + p = malloc(0); + if (p == NULL) + merror("malloc (0) failed."); + + p = realloc(p, 0); + if (p != NULL) + merror("realloc (p, 0) failed."); + + return errors != 0; +} +FINSH_FUNCTION_EXPORT(libc_mem, memory test for libc); diff --git a/examples/libc/printf.c b/examples/libc/printf.c new file mode 100644 index 0000000000..12435731b7 --- /dev/null +++ b/examples/libc/printf.c @@ -0,0 +1,200 @@ +#include +#include +#include + +#include + +char * format[] = { + "%", + "%0.", + "%.0", + "%+0.", + "%+.0", + "%.5", + "%+.5", + "%2.5", + "%22.5", + "%022.5", + "%#022.5", + "%-#022.5", + "%+#022.5", + "%-22.5", + "%+22.5", + "%--22.5", + "%++22.5", + "%+-22.5", + "%-+22.5", + "%-#022.5", + "%-#22.5", + "%-2.22", + "%+2.22", + "%-#02.22", + "%-#2.22", + "%-1.5", + "%1.5", + "%-#01.5", + "%-#1.5", + "%-#.5", + "%-#1.", + "%-#.", + NULL +}; + + +static void +intchk (const char *fmt) +{ + (void) printf("%15s :, \"", fmt); + (void) printf(fmt, 0); + (void) printf("\", \""); + (void) printf(fmt, 123); + (void) printf("\", \""); + (void) printf(fmt, -18); + (void) printf("\"\n"); +} + +static void +fltchk (const char *fmt) +{ + (void) printf("%15s :, \"", fmt); + (void) printf(fmt, 0.0); + (void) printf("\", \""); + (void) printf(fmt, 123.0001); + (void) printf("\", \""); + (void) printf(fmt, -18.0002301); + (void) printf("\"\n"); +} + + +int printf_test() +{ + char buf[256]; + int i; + + printf("%s\n\n", "# vim:syntax=off:"); + + /* integers */ + for(i=0;format[i];i++) { + strcpy(buf, format[i]); + strcat(buf, "d"); + intchk(buf); + } + + /* floats */ + for(i=0;format[i];i++) { + strcpy(buf, format[i]); + strcat(buf, "f"); + fltchk(buf); + } + /* hexa */ + for(i=0;format[i];i++) { + strcpy(buf, format[i]); + strcat(buf, "x"); + intchk(buf); + } + + printf("#%.4x %4x#\n", 4, 88); + printf("#%4x#\n",4); + printf("#%#22.8x#\n",1234567); + + printf("#%+2i#\n",18); + printf("#%i#\n",18); + printf("#%llu#\n",4294967297ULL); + printf("#%#x#\n",44444); + printf("#%-8i#\n",33); + printf("#%i#\n",18); + printf("#%d#\n",18); + printf("#%u#\n",18); + printf("#%lu#\n",18); + printf("#%li#\n",18); + printf("#%-+#06d#\n", -123); + printf("#%-+#6d#\n", -123); + printf("#%+#06d#\n", -123); + printf("#%06d#\n", -123); + printf("#%+15s#\n","ABCDEF"); + /* from ncurses make_keys */ + printf("{ %4d, %-*.*s },\t/* %s */\n", 139, 16, 16, "KEY_A1", "key_a1"); + printf("{ %4d, %-*.*s },\t/* %s */\n", 139, 16, 2, "KEY_A1", "key_a1"); + printf("{ %4d, %-*.*s },\t/* %s */\n", 139, 2, 16, "KEY_A1", "key_a1"); + printf("{ %4d, %-*.*s },\t/* %s */\n", 139, 16, 0, "KEY_A1", "key_a1"); + printf("{ %4d, %-*.*s },\t/* %s */\n", 139, 0, 16, "KEY_A1", "key_a1"); + printf("{ %4d, %-*.*s },\t/* %s */\n", 139, 0, 0, "KEY_A1", "key_a1"); + printf("{ %4d, %*.*s },\t/* %s */\n", 139, 16, 16, "KEY_A1", "key_a1"); + printf("{ %4d, %*.*s },\t/* %s */\n", 139, 16, 2, "KEY_A1", "key_a1"); + printf("{ %4d, %*.*s },\t/* %s */\n", 139, 2, 16, "KEY_A1", "key_a1"); + printf("{ %4d, %*.*s },\t/* %s */\n", 139, 16, 0, "KEY_A1", "key_a1"); + printf("{ %4d, %*.*s },\t/* %s */\n", 139, 0, 16, "KEY_A1", "key_a1"); + printf("{ %4d, %*.*s },\t/* %s */\n", 139, 0, 0, "KEY_A1", "key_a1"); + printf("%*.*f\n", 0, 16, 0.0); + printf("%*.*f\n", 16, 16, 0.0); + printf("%*.*f\n", 2, 2, -0.0); + printf("%*.*f\n", 20, 0, -123.123); + printf("%*.*f\n", 10, 0, +123.123); + + + i = printf("\"%s\"\n","A"); + printf("%i\n", i); + /* from glibc's tst-printf.c */ + + { + char buf[20]; + char buf2[512]; + int i; + + printf ("snprintf (\"%%30s\", \"foo\") == %d, \"%.*s\"\n", + snprintf (buf, sizeof (buf), "%30s", "foo"), (int) sizeof (buf), + buf); + memset(buf2,0,sizeof(buf)); + i=snprintf(buf2, 256, "%.9999u", 10); + printf("%i %i\n",i,strlen(buf2)); + + printf ("snprintf (\"%%.999999u\", 10) == %d\n", + snprintf(buf2, sizeof(buf2), "%.999999u", 10)); + } + return 0; +} + +void libc_printf() +{ + printf("stdout test!!\n"); + fprintf(stdout, "fprintf test!!\n"); + fprintf(stderr, "fprintf test!!\n"); + puts("puts test!!\n"); + + putc('1', stderr); + putc('2', stderr); + putc('\n', stderr); + + printf_test(); +} +FINSH_FUNCTION_EXPORT(libc_printf, printf test in libc); + + +void libc_dprintf() +{ + int fd; + + fd = open("/dev/console", O_WRONLY, 0); + if (fd >0) + { + dprintf(fd, "fd:%d printf test!!\n", fd); + close(fd); + } +} +FINSH_FUNCTION_EXPORT(libc_dprintf, dprintf test); + + +void libc_fdopen() +{ + int fd; + FILE* fp; + + fd = open("/dev/console", O_WRONLY, 0); + if (fd >0) + { + fp = fdopen(fd, "w"); + fprintf(fp, "fdopen test, fd %d!!\n", fileno(fp)); + fclose(fp); + } +} +FINSH_FUNCTION_EXPORT(libc_fdopen, fdopen test); diff --git a/examples/libc/rand.c b/examples/libc/rand.c new file mode 100644 index 0000000000..ca74353adc --- /dev/null +++ b/examples/libc/rand.c @@ -0,0 +1,43 @@ +/* + * rand.c + * + * Created on: 2010-11-17 + * Author: bernard + */ +#include +#include +#include + +int libc_rand(void) +{ + int i1, i2; + int j1, j2; + + /* The C standard says that "If rand is called before any calls to + srand have been made, the same sequence shall be generated as + when srand is first called with a seed value of 1." */ + i1 = rand(); + i2 = rand(); + srand(1); + j1 = rand(); + j2 = rand(); + if (i1 < 0 || i2 < 0 || j1 < 0 || j2 < 0) + { + puts("Test FAILED!"); + } + if (j1 == i1 && j2 == i2) + { + puts("Test succeeded."); + return 0; + } + else + { + if (j1 != i1) + printf("%d != %d\n", j1, i1); + if (j2 != i2) + printf("%d != %d\n", j2, i2); + puts("Test FAILED!"); + return 1; + } +} +FINSH_FUNCTION_EXPORT(libc_rand, rand test for libc); diff --git a/examples/libc/time.c b/examples/libc/time.c new file mode 100644 index 0000000000..cbe5773ec0 --- /dev/null +++ b/examples/libc/time.c @@ -0,0 +1,24 @@ +/* + * time.c + * + * Created on: 2010-11-17 + * Author: bernard + */ + +#include +#include +#include + +int speed() +{ + int i; + time_t t; + + printf("%d\n", time(0)); + for (i = 0; i < 10000000; ++i) + t = time(0); + + printf("%d\n", time(0)); + return 0; +} +FINSH_FUNCTION_EXPORT(speed, speed test);