openharmony/startup_init
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!938 add pretimeout

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Merge pull request !938 from stesen/master
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openharmony_ci 2022-08-26 05:07:31 +00:00 committed by Gitee
commit 7cf030e7b7
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1 changed files with 31 additions and 1 deletions
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32
watchdog/init_watchdog.c
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@ -37,6 +37,9 @@
#define DEFAULT_GAP 3
#define CONVERSION_BASE 1000000U
#define PRETIMEOUT_GAP 5
#define PRETIMEOUT_DIV 2
static void WaitAtStartup(const char *source)
{
unsigned int count = 0;
@ -83,6 +86,12 @@ int main(int argc, const char *argv[])
#endif
int timeoutSet = interval + gap;
int timeoutGet = 0;
#ifdef WDIOC_SETPRETIMEOUT
int preTimeout = 0;
int preTimeoutGet = 0;
#endif
int ret = ioctl(fd, WDIOC_SETTIMEOUT, &timeoutSet);
if (ret) {
INIT_LOGE("Failed to set timeout to %d\n", timeoutSet);
@ -90,9 +99,30 @@ int main(int argc, const char *argv[])
ret = ioctl(fd, WDIOC_GETTIMEOUT, &timeoutGet);
if (ret) {
INIT_LOGE("Failed to get timeout\n");
} else {
}
if (timeoutGet > 0) {
interval = (timeoutGet > gap) ? (timeoutGet - gap) : 1;
}
#ifdef WDIOC_SETPRETIMEOUT
preTimeout = timeoutGet - PRETIMEOUT_GAP; // ensure pretimeout smaller then timeout
if (preTimeout > 0) {
ret = ioctl(fd, WDIOC_SETPRETIMEOUT, &preTimeout);
if (ret) {
INIT_LOGE("Failed to set pretimeout to %d\n", preTimeout);
}
ret = ioctl(fd, WDIOC_GETPRETIMEOUT, &preTimeoutGet);
if (ret) {
INIT_LOGE("Failed to get pretimeout\n");
}
}
if (preTimeoutGet > 0 && preTimeoutGet < interval) {
interval = preTimeoutGet / PRETIMEOUT_DIV;
}
#endif
while (1) {
ioctl(fd, WDIOC_KEEPALIVE);
sleep(interval);