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-rw-r--r--runit/runit_lib.c210
1 files changed, 135 insertions, 75 deletions
diff --git a/runit/runit_lib.c b/runit/runit_lib.c
index 2953235f0..ee69429b2 100644
--- a/runit/runit_lib.c
+++ b/runit/runit_lib.c
@@ -54,7 +54,8 @@ static int oneread(int (*op)(int fd,char *buf,unsigned len),int fd,char *buf,uns
for (;;) {
r = op(fd,buf,len);
- if (r == -1) if (errno == EINTR) continue;
+ if (r == -1 && errno == EINTR)
+ continue;
return r;
}
}
@@ -72,12 +73,15 @@ int buffer_feed(buffer *s)
{
int r;
- if (s->p) return s->p;
+ if (s->p)
+ return s->p;
r = oneread(s->op,s->fd,s->x,s->n);
- if (r <= 0) return r;
+ if (r <= 0)
+ return r;
s->p = r;
s->n -= r;
- if (s->n > 0) memmove(s->x + s->n,s->x,r);
+ if (s->n > 0)
+ memmove(s->x + s->n,s->x,r);
return r;
}
@@ -85,9 +89,13 @@ int buffer_bget(buffer *s,char *buf,unsigned len)
{
int r;
- if (s->p > 0) return getthis(s,buf,len);
- if (s->n <= len) return oneread(s->op,s->fd,buf,s->n);
- r = buffer_feed(s); if (r <= 0) return r;
+ if (s->p > 0)
+ return getthis(s,buf,len);
+ if (s->n <= len)
+ return oneread(s->op,s->fd,buf,s->n);
+ r = buffer_feed(s);
+ if (r <= 0)
+ return r;
return getthis(s,buf,len);
}
@@ -95,9 +103,13 @@ int buffer_get(buffer *s,char *buf,unsigned len)
{
int r;
- if (s->p > 0) return getthis(s,buf,len);
- if (s->n <= len) return oneread(s->op,s->fd,buf,len);
- r = buffer_feed(s); if (r <= 0) return r;
+ if (s->p > 0)
+ return getthis(s,buf,len);
+ if (s->n <= len)
+ return oneread(s->op,s->fd,buf,len);
+ r = buffer_feed(s);
+ if (r <= 0)
+ return r;
return getthis(s,buf,len);
}
@@ -122,10 +134,11 @@ static int allwrite(int (*op)(int fd,char *buf,unsigned len),int fd,const char *
while (len) {
w = op(fd,(char*)buf,len);
if (w == -1) {
- if (errno == EINTR) continue;
+ if (errno == EINTR)
+ continue;
return -1; /* note that some data may have been written */
}
- if (w == 0) ; /* luser's fault */
+ /* if (w == 0) ; luser's fault */
buf += w;
len -= w;
}
@@ -183,7 +196,8 @@ int buffer_put(buffer *s,const char *buf,unsigned len)
int buffer_putflush(buffer *s,const char *buf,unsigned len)
{
- if (buffer_flush(s) == -1) return -1;
+ if (buffer_flush(s) == -1)
+ return -1;
return allwrite(s->op,s->fd,buf,len);
}
@@ -229,10 +243,10 @@ unsigned byte_chr(char *s,unsigned n,int c)
ch = c;
t = s;
for (;;) {
- if (!n) break; if (*t == ch) break; ++t; --n;
- if (!n) break; if (*t == ch) break; ++t; --n;
- if (!n) break; if (*t == ch) break; ++t; --n;
- if (!n) break; if (*t == ch) break; ++t; --n;
+ if (!n) break;
+ if (*t == ch) break;
+ ++t;
+ --n;
}
return t - s;
}
@@ -250,10 +264,13 @@ int coe(int fd)
int fd_copy(int to,int from)
{
- if (to == from) return 0;
- if (fcntl(from,F_GETFL,0) == -1) return -1;
+ if (to == from)
+ return 0;
+ if (fcntl(from,F_GETFL,0) == -1)
+ return -1;
close(to);
- if (fcntl(from,F_DUPFD,to) == -1) return -1;
+ if (fcntl(from,F_DUPFD,to) == -1)
+ return -1;
return 0;
}
@@ -262,8 +279,10 @@ int fd_copy(int to,int from)
int fd_move(int to,int from)
{
- if (to == from) return 0;
- if (fd_copy(to,from) == -1) return -1;
+ if (to == from)
+ return 0;
+ if (fd_copy(to,from) == -1)
+ return -1;
close(from);
return 0;
}
@@ -271,29 +290,47 @@ int fd_move(int to,int from)
/*** fifo.c ***/
-int fifo_make(const char *fn,int mode) { return mkfifo(fn,mode); }
+int fifo_make(const char *fn,int mode)
+{
+ return mkfifo(fn,mode);
+}
/*** fmt_ptime.c ***/
-unsigned fmt_ptime(char *s, struct taia *ta) {
+void fmt_ptime30nul(char *s, struct taia *ta) {
struct tm *t;
unsigned long u;
- if (ta->sec.x < 4611686018427387914ULL) return 0; /* impossible? */
+ if (ta->sec.x < 4611686018427387914ULL)
+ return; /* impossible? */
u = ta->sec.x -4611686018427387914ULL;
- if (!(t = gmtime((time_t*)&u))) return 0;
- fmt_ulong(s, 1900 + t->tm_year);
- s[4] = '-'; fmt_uint0(&s[5], t->tm_mon+1, 2);
- s[7] = '-'; fmt_uint0(&s[8], t->tm_mday, 2);
- s[10] = '_'; fmt_uint0(&s[11], t->tm_hour, 2);
- s[13] = ':'; fmt_uint0(&s[14], t->tm_min, 2);
- s[16] = ':'; fmt_uint0(&s[17], t->tm_sec, 2);
- s[19] = '.'; fmt_uint0(&s[20], ta->nano, 9);
- return 25;
-}
-
-unsigned fmt_taia(char *s, struct taia *t) {
+ t = gmtime((time_t*)&u);
+ if (!t)
+ return; /* huh? */
+ //fmt_ulong(s, 1900 + t->tm_year);
+ //s[4] = '-'; fmt_uint0(&s[5], t->tm_mon+1, 2);
+ //s[7] = '-'; fmt_uint0(&s[8], t->tm_mday, 2);
+ //s[10] = '_'; fmt_uint0(&s[11], t->tm_hour, 2);
+ //s[13] = ':'; fmt_uint0(&s[14], t->tm_min, 2);
+ //s[16] = ':'; fmt_uint0(&s[17], t->tm_sec, 2);
+ //s[19] = '.'; fmt_uint0(&s[20], ta->nano, 9);
+ sprintf(s, "%04u-%02u-%02u_%02u:%02u:%02u.%09u",
+ (unsigned)(1900 + t->tm_year),
+ (unsigned)(t->tm_mon+1),
+ (unsigned)(t->tm_mday),
+ (unsigned)(t->tm_hour),
+ (unsigned)(t->tm_min),
+ (unsigned)(t->tm_sec),
+ (unsigned)(ta->nano)
+ );
+ /* 4+1 + 2+1 + 2+1 + 2+1 + 2+1 + 2+1 + 9 = */
+ /* 5 + 3 + 3 + 3 + 3 + 3 + 9 = */
+ /* 20 (up to '.' inclusive) + 9 (not including '\0') */
+ return;
+}
+
+unsigned fmt_taia25(char *s, struct taia *t) {
static char pack[TAIA_PACK];
taia_pack(pack, t);
@@ -303,6 +340,7 @@ unsigned fmt_taia(char *s, struct taia *t) {
}
+#ifdef UNUSED
/*** fmt_uint.c ***/
unsigned fmt_uint(char *s,unsigned u)
@@ -316,13 +354,20 @@ unsigned fmt_uint(char *s,unsigned u)
unsigned fmt_uint0(char *s,unsigned u,unsigned n)
{
unsigned len;
- len = fmt_uint(FMT_LEN,u);
- while (len < n) { if (s) *s++ = '0'; ++len; }
- if (s) fmt_uint(s,u);
+ len = fmt_uint(FMT_LEN, u);
+ while (len < n) {
+ if (s)
+ *s++ = '0';
+ ++len;
+ }
+ if (s)
+ fmt_uint(s, u);
return len;
}
+#endif
+#ifdef UNUSED
/*** fmt_ulong.c ***/
unsigned fmt_ulong(char *s,unsigned long u)
@@ -336,18 +381,22 @@ unsigned fmt_ulong(char *s,unsigned long u)
}
return len;
}
+#endif
+#ifdef UNUSED
/*** tai_now.c ***/
void tai_now(struct tai *t)
{
- tai_unix(t,time((time_t *) 0));
+ tai_unix(t, time(NULL));
}
+#endif
/*** tai_pack.c ***/
+static /* as it isn't used anywhere else */
void tai_pack(char *s,const struct tai *t)
{
uint64_t x;
@@ -364,12 +413,14 @@ void tai_pack(char *s,const struct tai *t)
}
+#ifdef UNUSED
/*** tai_sub.c ***/
-void tai_sub(struct tai *t,const struct tai *u,const struct tai *v)
+void tai_sub(struct tai *t, const struct tai *u, const struct tai *v)
{
t->x = u->x - v->x;
}
+#endif
/*** tai_unpack.c ***/
@@ -410,19 +461,27 @@ void taia_add(struct taia *t,const struct taia *u,const struct taia *v)
}
-/*** taia_approx.c ***/
+#ifdef UNUSED
+/*** taia_frac.c ***/
-double taia_approx(const struct taia *t)
+double taia_frac(const struct taia *t)
{
- return tai_approx(&t->sec) + taia_frac(t);
+ return (t->atto * 0.000000001 + t->nano) * 0.000000001;
}
-/*** taia_frac.c ***/
+/*** taia_approx.c ***/
-double taia_frac(const struct taia *t)
+double taia_approx(const struct taia *t)
{
- return (t->atto * 0.000000001 + t->nano) * 0.000000001;
+ return t->sec->x + taia_frac(t);
+}
+#endif
+
+static
+uint64_t taia2millisec(const struct taia *t)
+{
+ return (t->sec.x * 1000) + (t->nano / 1000000);
}
@@ -445,8 +504,8 @@ int taia_less(const struct taia *t,const struct taia *u)
void taia_now(struct taia *t)
{
struct timeval now;
- gettimeofday(&now,(struct timezone *) 0);
- tai_unix(&t->sec,now.tv_sec);
+ gettimeofday(&now, NULL);
+ tai_unix(&t->sec, now.tv_sec);
t->nano = 1000 * now.tv_usec + 500;
t->atto = 0;
}
@@ -454,11 +513,11 @@ void taia_now(struct taia *t)
/*** taia_pack.c ***/
-void taia_pack(char *s,const struct taia *t)
+void taia_pack(char *s, const struct taia *t)
{
unsigned long x;
- tai_pack(s,&t->sec);
+ tai_pack(s, &t->sec);
s += 8;
x = t->atto;
@@ -575,25 +634,25 @@ GEN_ALLOC_append(stralloc,char,s,len,a,i,n,x,30,stralloc_readyplus,stralloc_appe
void iopause(iopause_fd *x,unsigned len,struct taia *deadline,struct taia *stamp)
{
- struct taia t;
int millisecs;
- double d;
int i;
if (taia_less(deadline,stamp))
millisecs = 0;
else {
+ uint64_t m;
+ struct taia t;
t = *stamp;
- taia_sub(&t,deadline,&t);
- d = taia_approx(&t);
- if (d > 1000.0) d = 1000.0;
- millisecs = d * 1000.0 + 20.0;
+ taia_sub(&t, deadline, &t);
+ millisecs = m = taia2millisec(&t);
+ if (m > 1000) millisecs = 1000;
+ millisecs += 20;
}
- for (i = 0;i < len;++i)
+ for (i = 0; i < len; ++i)
x[i].revents = 0;
- poll(x,len,millisecs);
+ poll(x, len, millisecs);
/* XXX: some kernels apparently need x[0] even if len is 0 */
/* XXX: how to handle EAGAIN? are kernels really this dumb? */
/* XXX: how to handle EINVAL? when exactly can this happen? */
@@ -867,26 +926,28 @@ unsigned scan_ulong(const char *s,unsigned long *u)
}
+#ifdef UNUSED
/*** seek_set.c ***/
int seek_set(int fd,seek_pos pos)
{
if (lseek(fd,(off_t) pos,SEEK_SET) == -1) return -1; return 0;
}
+#endif
/*** sig.c ***/
-int sig_alarm = SIGALRM;
-int sig_child = SIGCHLD;
-int sig_cont = SIGCONT;
-int sig_hangup = SIGHUP;
-int sig_int = SIGINT;
-int sig_pipe = SIGPIPE;
-int sig_term = SIGTERM;
+//int sig_alarm = SIGALRM;
+//int sig_child = SIGCHLD;
+//int sig_cont = SIGCONT;
+//int sig_hangup = SIGHUP;
+//int sig_int = SIGINT;
+//int sig_pipe = SIGPIPE;
+//int sig_term = SIGTERM;
-void (*sig_defaulthandler)(int) = SIG_DFL;
-void (*sig_ignorehandler)(int) = SIG_IGN;
+//void (*sig_defaulthandler)(int) = SIG_DFL;
+//void (*sig_ignorehandler)(int) = SIG_IGN;
/*** sig_block.c ***/
@@ -947,10 +1008,9 @@ unsigned str_chr(const char *s,int c)
ch = c;
t = s;
for (;;) {
- if (!*t) break; if (*t == ch) break; ++t;
- if (!*t) break; if (*t == ch) break; ++t;
- if (!*t) break; if (*t == ch) break; ++t;
- if (!*t) break; if (*t == ch) break; ++t;
+ if (!*t) break;
+ if (*t == ch) break;
+ ++t;
}
return t - s;
}
@@ -960,7 +1020,7 @@ unsigned str_chr(const char *s,int c)
int wait_nohang(int *wstat)
{
- return waitpid(-1,wstat,WNOHANG);
+ return waitpid(-1, wstat, WNOHANG);
}
@@ -971,7 +1031,7 @@ int wait_pid(int *wstat, int pid)
int r;
do
- r = waitpid(pid,wstat,0);
+ r = waitpid(pid, wstat, 0);
while ((r == -1) && (errno == EINTR));
return r;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-16 19:49:35 +0000