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-rw-r--r--runit/svlogd.c72
1 files changed, 46 insertions, 26 deletions
diff --git a/runit/svlogd.c b/runit/svlogd.c
index a0e562b..f0e9aaf 100644
--- a/runit/svlogd.c
+++ b/runit/svlogd.c
@@ -59,7 +59,7 @@ static iopause_fd input;
static int fl_flag_0;
static struct logdir {
-//// char *btmp;
+ ////char *btmp;
/* pattern list to match, in "aa\0bb\0\cc\0\0" form */
char *inst;
char *processor;
@@ -73,6 +73,7 @@ static struct logdir {
int ppid;
int fddir;
int fdcur;
+ FILE* filecur; ////
int fdlock;
struct taia trotate;
char fnsave[FMT_PTIME];
@@ -300,11 +301,13 @@ static unsigned rotate(struct logdir *ld)
}
if (ld->size > 0) {
- while (fsync(ld->fdcur) == -1)
+ while (fflush(ld->filecur) || fsync(ld->fdcur) == -1)
pause2cannot("fsync current logfile", ld->name);
while (fchmod(ld->fdcur, 0744) == -1)
pause2cannot("set mode of current", ld->name);
- close(ld->fdcur);
+ ////close(ld->fdcur);
+ fclose(ld->filecur);
+
if (verbose) {
bb_error_msg(INFO"rename: %s/current %s %u", ld->name,
ld->fnsave, ld->size);
@@ -313,6 +316,9 @@ static unsigned rotate(struct logdir *ld)
pause2cannot("rename current", ld->name);
while ((ld->fdcur = open("current", O_WRONLY|O_NDELAY|O_APPEND|O_CREAT, 0600)) == -1)
pause2cannot("create new current", ld->name);
+ /* we presume this cannot fail */
+ ld->filecur = fdopen(ld->fdcur, "a"); ////
+ setvbuf(ld->filecur, NULL, _IOFBF, linelen); ////
coe(ld->fdcur);
ld->size = 0;
while (fchmod(ld->fdcur, 0644) == -1)
@@ -337,7 +343,12 @@ static int buffer_pwrite(int n, char *s, unsigned len)
if (len > (ld->sizemax - ld->size))
len = ld->sizemax - ld->size;
}
- while ((i = full_write(ld->fdcur, s, len)) == -1) {
+ while (1) {
+ ////i = full_write(ld->fdcur, s, len);
+ ////if (i != -1) break;
+ i = fwrite(s, 1, len, ld->filecur);
+ if (i == len) break;
+
if ((errno == ENOSPC) && (ld->nmin < ld->nmax)) {
DIR *d;
struct dirent *f;
@@ -399,11 +410,12 @@ static void logdir_close(struct logdir *ld)
ld->fddir = -1;
if (ld->fdcur == -1)
return; /* impossible */
- while (fsync(ld->fdcur) == -1)
+ while (fflush(ld->filecur) || fsync(ld->fdcur) == -1)
pause2cannot("fsync current logfile", ld->name);
while (fchmod(ld->fdcur, 0744) == -1)
pause2cannot("set mode of current", ld->name);
- close(ld->fdcur);
+ ////close(ld->fdcur);
+ fclose(ld->filecur);
ld->fdcur = -1;
if (ld->fdlock == -1)
return; /* impossible */
@@ -560,6 +572,10 @@ static unsigned logdir_open(struct logdir *ld, const char *fn)
}
while ((ld->fdcur = open("current", O_WRONLY|O_NDELAY|O_APPEND|O_CREAT, 0600)) == -1)
pause2cannot("open current", ld->name);
+ /* we presume this cannot fail */
+ ld->filecur = fdopen(ld->fdcur, "a"); ////
+ setvbuf(ld->filecur, NULL, _IOFBF, linelen); ////
+
coe(ld->fdcur);
while (fchmod(ld->fdcur, 0644) == -1)
pause2cannot("set mode of current", ld->name);
@@ -601,9 +617,8 @@ static ssize_t ndelay_read(int fd, void *buf, size_t count)
}
/* Used for reading stdin */
-static int buffer_pread(int fd, char *s, unsigned len)
+static int buffer_pread(int fd, char *s, unsigned len, struct taia *now)
{
- struct taia now;
int i;
if (rotateasap) {
@@ -620,12 +635,11 @@ static int buffer_pread(int fd, char *s, unsigned len)
logdirs_reopen();
reopenasap = 0;
}
- taia_now(&now);
taia_uint(&trotate, 2744);
- taia_add(&trotate, &now, &trotate);
+ taia_add(&trotate, now, &trotate);
for (i = 0; i < dirn; ++i)
if (dir[i].tmax) {
- if (taia_less(&dir[i].trotate, &now))
+ if (taia_less(&dir[i].trotate, now))
rotate(dir+i);
if (taia_less(&dir[i].trotate, &trotate))
trotate = dir[i].trotate;
@@ -633,7 +647,7 @@ static int buffer_pread(int fd, char *s, unsigned len)
while (1) {
sigprocmask(SIG_UNBLOCK, &blocked_sigset, NULL);
- iopause(&input, 1, &trotate, &now);
+ iopause(&input, 1, &trotate, now);
sigprocmask(SIG_BLOCK, &blocked_sigset, NULL);
i = ndelay_read(fd, s, len);
if (i >= 0) break;
@@ -734,7 +748,6 @@ static void logmatch(struct logdir *ld)
int svlogd_main(int argc, char **argv)
{
- struct taia now;
char *r,*l,*b;
ssize_t stdin_cnt = 0;
int i;
@@ -757,10 +770,10 @@ int svlogd_main(int argc, char **argv)
if (linemax == 0) linemax = BUFSIZ-26;
if (linemax < 256) linemax = 256;
}
-//// if (opt & 8) { // -b
-//// buflen = xatoi_u(b);
-//// if (buflen == 0) buflen = 1024;
-//// }
+ ////if (opt & 8) { // -b
+ //// buflen = xatoi_u(b);
+ //// if (buflen == 0) buflen = 1024;
+ ////}
//if (opt & 0x10) timestamp++; // -t
//if (opt & 0x20) verbose++; // -v
//if (timestamp > 2) timestamp = 2;
@@ -807,8 +820,11 @@ int svlogd_main(int argc, char **argv)
if (!timestamp)
memRchr = memrchr;
+ setvbuf(stderr, NULL, _IOFBF, linelen);
+
/* Each iteration processes one or more lines */
while (1) {
+ struct taia now;
char stamp[FMT_PTIME];
char *lineptr;
char *printptr;
@@ -817,9 +833,9 @@ int svlogd_main(int argc, char **argv)
char ch;
lineptr = line;
+ taia_now(&now);
/* Prepare timestamp if needed */
if (timestamp) {
- taia_now(&now);
switch (timestamp) {
case 1:
fmt_taia25(stamp, &now);
@@ -839,7 +855,7 @@ int svlogd_main(int argc, char **argv)
if (!np && !exitasap) {
i = linemax - stdin_cnt; /* avail. bytes at tail */
if (i >= 128) {
- i = buffer_pread(0, lineptr + stdin_cnt, i);
+ i = buffer_pread(0, lineptr + stdin_cnt, i, &now);
if (i <= 0) /* EOF or error on stdin */
exitasap = 1;
else {
@@ -861,10 +877,10 @@ int svlogd_main(int argc, char **argv)
/* linelen == no of chars incl. '\n' (or == stdin_cnt) */
ch = lineptr[linelen-1];
- /* TODO: biggest performance hit is coming from the fact
- * that we do not buffer writes. We may read many lines
- * in one read() above, but will do one write()
- * per line below. Should we use stdio? */
+ /* Biggest performance hit was coming from the fact
+ * that we did not buffer writes. We were reading many lines
+ * in one read() above, but wrote one line per write().
+ * We are using stdio to fix that */
/* write out lineptr[0..linelen-1] to each log destination
* (or lineptr[-26..linelen-1] if timestamping) */
@@ -882,7 +898,8 @@ int svlogd_main(int argc, char **argv)
if (ld->inst)
logmatch(ld);
if (ld->matcherr == 'e')
- full_write(2, printptr, printlen);
+ ////full_write(2, printptr, printlen);
+ fwrite(lineptr, 1, linelen, stderr);
if (ld->match != '+') continue;
buffer_pwrite(i, printptr, printlen);
}
@@ -891,7 +908,8 @@ int svlogd_main(int argc, char **argv)
/* read/write repeatedly until we see it */
while (ch != '\n') {
/* lineptr is emptied now, safe to use as buffer */
- stdin_cnt = exitasap ? -1 : buffer_pread(0, lineptr, linemax);
+ taia_now(&now);
+ stdin_cnt = exitasap ? -1 : buffer_pread(0, lineptr, linemax, &now);
if (stdin_cnt <= 0) { /* EOF or error on stdin */
exitasap = 1;
lineptr[0] = ch = '\n';
@@ -908,7 +926,8 @@ int svlogd_main(int argc, char **argv)
for (i = 0; i < dirn; ++i) {
if (dir[i].fddir == -1) continue;
if (dir[i].matcherr == 'e')
- full_write(2, lineptr, linelen);
+ ////full_write(2, lineptr, linelen);
+ fwrite(lineptr, 1, linelen, stderr);
if (dir[i].match != '+') continue;
buffer_pwrite(i, lineptr, linelen);
}
@@ -925,6 +944,7 @@ int svlogd_main(int argc, char **argv)
/* Move unprocessed data to the front of line */
memmove((timestamp ? line+26 : line), lineptr, stdin_cnt);
}
+ fflush(NULL);////
}
for (i = 0; i < dirn; ++i) {
generated by cgit v1.1 at 2024-12-27 07:07:03 +0000