104 lines
1.9 KiB
C
104 lines
1.9 KiB
C
#include "opts/log.h"
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#include "opts/opts.h"
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#include <string.h>
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char *
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strstrn(const char *s, const char *find, size_t len)
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{
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char c, sc;
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if ((c = *find++) != 0) {
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len--;
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do {
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do {
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if ((sc = *s++) == 0)
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return (NULL);
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} while (sc != c);
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} while (strncmp(s, find, len) != 0);
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s--;
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}
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return ((char *)s);
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}
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bool filter_log(const char *filename)
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{
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if (!log_options.filter[0])
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return false;
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const char *ptr = log_options.filter;
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do {
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const char *next = strchr(ptr, OPTION_VALUE_LIST_SEP[0]);
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if (!next)
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next = ptr + strlen(ptr);
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if(strstrn(filename, ptr, next - ptr))
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return true;
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ptr = next;
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} while(*ptr++);
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return false;
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}
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int shrink_to_block(int size, int block)
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{
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return size / block * block;
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}
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uint64_t get_time_us(clockid_t clock, struct timespec *ts, struct timeval *tv, int64_t delays_us)
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{
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struct timespec now;
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if (clock != CLOCK_FROM_PARAMS) {
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clock_gettime(clock, &now);
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} else if (ts) {
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now = *ts;
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} else if (tv) {
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now.tv_sec = tv->tv_sec;
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now.tv_nsec = tv->tv_usec * 1000;
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} else {
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return -1;
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}
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if (delays_us > 0) {
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#define NS_IN_S (1000LL * 1000LL * 1000LL)
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int64_t nsec = now.tv_nsec + delays_us * 1000LL;
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now.tv_nsec = nsec % NS_IN_S;
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now.tv_sec += nsec / NS_IN_S;
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}
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if (ts) {
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*ts = now;
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}
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if (tv) {
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tv->tv_sec = now.tv_sec;
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tv->tv_usec = now.tv_nsec / 1000;
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}
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return now.tv_sec * 1000000LL + now.tv_nsec / 1000;
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}
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uint64_t get_monotonic_time_us(struct timespec *ts, struct timeval *tv)
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{
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return get_time_us(CLOCK_MONOTONIC, ts, tv, 0);
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}
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int ioctl_retried(const char *name, int fd, int request, void *arg)
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{
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#define MAX_RETRIES 4
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int retries = 4;
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int ret = -1;
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while (retries-- > 0) {
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ret = ioctl(fd, request, arg);
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if (errno != EINTR && errno != EAGAIN && errno != ETIMEDOUT)
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break;
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}
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if (ret && retries <= 0) {
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LOG_PERROR(NULL, "%s: ioctl(%08x) retried %u times; giving up", name, request, MAX_RETRIES);
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}
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return ret;
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}
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