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newlib-cygwin
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* fhandler_proc.cc (fhandler_proc::fill_filebuf): Allocate more space for stat 

buffer.
(format_proc_stat): Reorganize to accumulate and report on all cpus.
This commit is contained in:
Christopher Faylor 2003-07-10 01:09:24 +00:00
parent ab3dc80d9e
commit cf38615c3b
2 changed files with 60 additions and 23 deletions
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6
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,9 @@
2003-07-09 Christopher Faylor <cgf@redhat.com>
* fhandler_proc.cc (fhandler_proc::fill_filebuf): Allocate more space
for stat buffer.
(format_proc_stat): Reorganize to accumulate and report on all cpus.
2003-07-09 Christopher Faylor <cgf@redhat.com>
* sysconf.cc (sysconf): Return processors online rather than bitmask

77
winsup/cygwin/fhandler_proc.cc
View File

@ -349,7 +349,7 @@ fhandler_proc::fill_filebuf ()
}
case PROC_STAT:
{
filebuf = (char *) realloc (filebuf, bufalloc = 2048);
filebuf = (char *) realloc (filebuf, bufalloc = 16384);
filesize = format_proc_stat (filebuf, bufalloc);
break;
}
@ -456,24 +456,61 @@ out:
static _off64_t
format_proc_stat (char *destbuf, size_t maxsize)
{
unsigned long long user_time = 0ULL, kernel_time = 0ULL, idle_time = 0ULL;
unsigned long pages_in = 0UL, pages_out = 0UL, interrupt_count = 0UL,
context_switches = 0UL, swap_in = 0UL, swap_out = 0UL;
time_t boot_time = 0;
if (wincap.is_winnt ())
char *eobuf = destbuf;
if (!wincap.is_winnt ())
eobuf += __small_sprintf (destbuf, "cpu %U %U %U %U\n", 0, 0, 0, 0);
else
{
NTSTATUS ret;
SYSTEM_PROCESSOR_TIMES spt;
SYSTEM_PERFORMANCE_INFORMATION spi;
SYSTEM_TIME_OF_DAY_INFORMATION stodi;
ret = NtQuerySystemInformation (SystemProcessorTimes,
(PVOID) &spt,
sizeof spt, NULL);
SYSTEM_BASIC_INFORMATION sbi;
if ((ret = NtQuerySystemInformation (SystemBasicInformation,
(PVOID) &sbi, sizeof sbi, NULL))
!= STATUS_SUCCESS)
{
__seterrno_from_win_error (RtlNtStatusToDosError (ret));
debug_printf ("NtQuerySystemInformation: ret = %d, "
"Dos(ret) = %d",
ret, RtlNtStatusToDosError (ret));
sbi.NumberProcessors = 1;
}
SYSTEM_PROCESSOR_TIMES spt[sbi.NumberProcessors];
ret = NtQuerySystemInformation (SystemProcessorTimes, (PVOID) spt,
sizeof spt[0] * sbi.NumberProcessors, NULL);
interrupt_count = 0;
if (ret == STATUS_SUCCESS)
ret = NtQuerySystemInformation (SystemPerformanceInformation,
(PVOID) &spi,
sizeof spi, NULL);
{
unsigned long long user_time = 0ULL, kernel_time = 0ULL, idle_time = 0ULL;
for (int i = 0; i < sbi.NumberProcessors; i++)
{
kernel_time += (spt[i].KernelTime.QuadPart - spt[i].IdleTime.QuadPart) * HZ / 10000000ULL;
user_time += spt[i].UserTime.QuadPart * HZ / 10000000ULL;
idle_time += spt[i].IdleTime.QuadPart * HZ / 10000000ULL;
}
eobuf += __small_sprintf (eobuf, "cpu %U %U %U %U\n",
user_time, 0ULL, kernel_time, idle_time);
user_time = 0ULL, kernel_time = 0ULL, idle_time = 0ULL;
for (int i = 0; i < sbi.NumberProcessors; i++)
{
interrupt_count += spt[i].InterruptCount;
kernel_time = (spt[i].KernelTime.QuadPart - spt[i].IdleTime.QuadPart) * HZ / 10000000ULL;
user_time = spt[i].UserTime.QuadPart * HZ / 10000000ULL;
idle_time = spt[i].IdleTime.QuadPart * HZ / 10000000ULL;
eobuf += __small_sprintf (eobuf, "cpu%d %U %U %U %U\n", i,
user_time, 0ULL, kernel_time, idle_time);
}
ret = NtQuerySystemInformation (SystemPerformanceInformation,
(PVOID) &spi, sizeof spi, NULL);
}
if (ret == STATUS_SUCCESS)
ret = NtQuerySystemInformation (SystemTimeOfDayInformation,
(PVOID) &stodi,
@ -486,10 +523,6 @@ format_proc_stat (char *destbuf, size_t maxsize)
ret, RtlNtStatusToDosError (ret));
return 0;
}
kernel_time = (spt.KernelTime.QuadPart - spt.IdleTime.QuadPart) * HZ / 10000000ULL;
user_time = spt.UserTime.QuadPart * HZ / 10000000ULL;
idle_time = spt.IdleTime.QuadPart * HZ / 10000000ULL;
interrupt_count = spt.InterruptCount;
pages_in = spi.PagesRead;
pages_out = spi.PagefilePagesWritten + spi.MappedFilePagesWritten;
/*
@ -512,19 +545,17 @@ format_proc_stat (char *destbuf, size_t maxsize)
* counters is by no means worth it.
* }
*/
return __small_sprintf (destbuf, "cpu %U %U %U %U\n"
"page %u %u\n"
eobuf += __small_sprintf (eobuf, "page %u %u\n"
"swap %u %u\n"
"intr %u\n"
"ctxt %u\n"
"btime %u\n",
user_time, 0ULL,
kernel_time, idle_time,
pages_in, pages_out,
swap_in, swap_out,
interrupt_count,
context_switches,
boot_time);
pages_in, pages_out,
swap_in, swap_out,
interrupt_count,
context_switches,
boot_time);
return eobuf - destbuf;
}
#define read_value(x,y) \