libs/rt-thread
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fix bug in simulator/drivers/serial.c which deadlock may happen if multi-uart both output use printf

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prife 2013-02-07 23:21:19 +08:00
parent 1c522be515
commit 81751d99cc
1 changed files with 3 additions and 0 deletions
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3
bsp/simulator/drivers/serial.c
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@ -151,6 +151,7 @@ static rt_size_t rt_serial_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_
static rt_size_t rt_serial_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size) static rt_size_t rt_serial_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
{ {
int level;
#if _DEBUG_SERIAL==1 #if _DEBUG_SERIAL==1
printf("in rt_serial_write()\n"); printf("in rt_serial_write()\n");
#endif #endif
@ -162,8 +163,10 @@ static rt_size_t rt_serial_write(rt_device_t dev, rt_off_t pos, const void *buff
fwrite(buffer, size, 1, fp); fwrite(buffer, size, 1, fp);
#endif #endif
level = rt_hw_interrupt_disable();
printf("%s", (char *)buffer); printf("%s", (char *)buffer);
fflush(stdout); fflush(stdout);
rt_hw_interrupt_enable(level);
return size; return size;
} }