diff options
author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-01-03 16:50:55 -0200 |
---|---|---|
committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-01-03 16:50:55 -0200 |
commit | 1e7972cc5c16e06f258b0278d8c9adfb5aa75c68 (patch) | |
tree | b73bbe4083bba9e345474fd17082d8a179f93157 /tools/perf | |
parent | daec78a09de3df5fbfbbd167da0304d49d7fcfe5 (diff) |
perf util: Move do_read from session to util
Not really something to be exported from session.c. Rename it to
'readn' as others did in the past.
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r-- | tools/perf/util/header.c | 6 | ||||
-rw-r--r-- | tools/perf/util/session.c | 22 | ||||
-rw-r--r-- | tools/perf/util/session.h | 1 | ||||
-rw-r--r-- | tools/perf/util/util.c | 17 | ||||
-rw-r--r-- | tools/perf/util/util.h | 1 |
5 files changed, 23 insertions, 24 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index ecb5a8444f42..05dec98fc3ff 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -604,7 +604,7 @@ int perf_header__write(struct perf_header *self, int fd, bool at_exit) static int perf_header__getbuffer64(struct perf_header *self, int fd, void *buf, size_t size) { - if (do_read(fd, buf, size) <= 0) + if (readn(fd, buf, size) <= 0) return -1; if (self->needs_swap) @@ -660,7 +660,7 @@ int perf_file_header__read(struct perf_file_header *self, { lseek(fd, 0, SEEK_SET); - if (do_read(fd, self, sizeof(*self)) <= 0 || + if (readn(fd, self, sizeof(*self)) <= 0 || memcmp(&self->magic, __perf_magic, sizeof(self->magic))) return -1; @@ -821,7 +821,7 @@ static int perf_file_header__read_pipe(struct perf_pipe_file_header *self, struct perf_header *ph, int fd, bool repipe) { - if (do_read(fd, self, sizeof(*self)) <= 0 || + if (readn(fd, self, sizeof(*self)) <= 0 || memcmp(&self->magic, __perf_magic, sizeof(self->magic))) return -1; diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 0f7e544544f5..b163dfd6cbc5 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -838,23 +838,6 @@ static struct thread *perf_session__register_idle_thread(struct perf_session *se return thread; } -int do_read(int fd, void *buf, size_t size) -{ - void *buf_start = buf; - - while (size) { - int ret = read(fd, buf, size); - - if (ret <= 0) - return ret; - - size -= ret; - buf += ret; - } - - return buf - buf_start; -} - #define session_done() (*(volatile int *)(&session_done)) volatile int session_done; @@ -872,7 +855,7 @@ static int __perf_session__process_pipe_events(struct perf_session *self, head = 0; more: - err = do_read(self->fd, &event, sizeof(struct perf_event_header)); + err = readn(self->fd, &event, sizeof(struct perf_event_header)); if (err <= 0) { if (err == 0) goto done; @@ -892,8 +875,7 @@ more: p += sizeof(struct perf_event_header); if (size - sizeof(struct perf_event_header)) { - err = do_read(self->fd, p, - size - sizeof(struct perf_event_header)); + err = readn(self->fd, p, size - sizeof(struct perf_event_header)); if (err <= 0) { if (err == 0) { pr_err("unexpected end of event stream\n"); diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h index ffe4b98db8f0..decd83f274fd 100644 --- a/tools/perf/util/session.h +++ b/tools/perf/util/session.h @@ -109,7 +109,6 @@ void mem_bswap_64(void *src, int byte_size); int perf_session__create_kernel_maps(struct perf_session *self); -int do_read(int fd, void *buf, size_t size); void perf_session__update_sample_type(struct perf_session *self); void perf_session__set_sample_id_all(struct perf_session *session, bool value); void perf_session__set_sample_type(struct perf_session *session, u64 type); diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c index 214265674ddd..5b3ea49aa63e 100644 --- a/tools/perf/util/util.c +++ b/tools/perf/util/util.c @@ -114,3 +114,20 @@ unsigned long convert_unit(unsigned long value, char *unit) return value; } + +int readn(int fd, void *buf, size_t n) +{ + void *buf_start = buf; + + while (n) { + int ret = read(fd, buf, n); + + if (ret <= 0) + return ret; + + n -= ret; + buf += ret; + } + + return buf - buf_start; +} diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h index 7562707ddd1c..e833f26f3bfc 100644 --- a/tools/perf/util/util.h +++ b/tools/perf/util/util.h @@ -265,6 +265,7 @@ void argv_free(char **argv); bool strglobmatch(const char *str, const char *pat); bool strlazymatch(const char *str, const char *pat); unsigned long convert_unit(unsigned long value, char *unit); +int readn(int fd, void *buf, size_t size); #define _STR(x) #x #define STR(x) _STR(x) |