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speedtrack: add sync and syncfs wrappers

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This commit is contained in:
Christian Hergert
2020-03-13 16:10:14 -07:00
parent 37afd71370
commit 55f8f313b7
1 changed files with 72 additions and 0 deletions
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72
src/libsysprof/preload/sysprof-speedtrack-collector.c
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@ -40,6 +40,8 @@ static int hook_close (int fd);
static int hook_fsync (int fd);
static int hook_fdatasync (int fd);
static int hook_msync (void *addr, size_t length, int flags);
static void hook_sync (void);
static int hook_syncfs (int fd);
static ssize_t hook_read (int fd, void *buf, size_t nbyte);
static ssize_t hook_write (int fd, const void *buf, size_t nbyte);
@ -51,6 +53,8 @@ static int (*real_fdatasync) (int fd) = hook_fdatasync;
static int (*real_msync) (void *addr, size_t length, int flags) = hook_msync;
static ssize_t (*real_read) (int fd, void *buf, size_t nbyte) = hook_read;
static ssize_t (*real_write) (int fd, const void *buf, size_t nbyte) = hook_write;
static void (*real_sync) (void) = hook_sync;
static int (*real_syncfs) (int fd) = hook_syncfs;
static inline gboolean
is_capturing (void)
@ -366,3 +370,71 @@ hook_write (int fd,
hook_func ((void **)&real_write, "write");
return real_write (fd, buf, nbyte);
}
void
sync (void)
{
if (is_capturing ())
{
gint64 begin;
gint64 end;
rec_guard = TRUE;
begin = SYSPROF_CAPTURE_CURRENT_TIME;
real_sync ();
end = SYSPROF_CAPTURE_CURRENT_TIME;
sysprof_collector_sample (backtrace_func, NULL);
sysprof_collector_mark (begin, end - begin, "speedtrack", "sync", "");
rec_guard = FALSE;
return;
}
real_sync ();
}
static void
hook_sync (void)
{
hook_func ((void **)&real_sync, "sync");
real_sync ();
}
int
syncfs (int fd)
{
if (is_capturing ())
{
gint64 begin;
gint64 end;
gchar str[32];
int ret;
rec_guard = TRUE;
begin = SYSPROF_CAPTURE_CURRENT_TIME;
ret = real_syncfs (fd);
end = SYSPROF_CAPTURE_CURRENT_TIME;
g_snprintf (str, sizeof str, "fd = %d => %d", fd, ret);
sysprof_collector_sample (backtrace_func, NULL);
sysprof_collector_mark (begin, end - begin, "speedtrack", "syncfs", str);
rec_guard = FALSE;
return ret;
}
return real_syncfs (fd);
}
static int
hook_syncfs (int fd)
{
hook_func ((void **)&real_syncfs, "syncfs");
return real_syncfs (fd);
}