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Add non-root support for UST tracing
[lttng-tools.git]
/
liblttng-consumer
/
lttng-consumer.c
diff --git
a/liblttng-consumer/lttng-consumer.c
b/liblttng-consumer/lttng-consumer.c
index 293d5f808ea0d2f68d441554563b239911fd02b8..893df720882b7afd6798e789ca7fd90c967836fd 100644
(file)
--- a/
liblttng-consumer/lttng-consumer.c
+++ b/
liblttng-consumer/lttng-consumer.c
@@
-129,7
+129,8
@@
void consumer_del_stream(struct lttng_consumer_stream *stream)
}
}
break;
}
}
break;
- case LTTNG_CONSUMER_UST:
+ case LTTNG_CONSUMER32_UST:
+ case LTTNG_CONSUMER64_UST:
lttng_ustconsumer_del_stream(stream);
break;
default:
lttng_ustconsumer_del_stream(stream);
break;
default:
@@
-178,7
+179,7
@@
struct lttng_consumer_stream *consumer_allocate_stream(
struct lttng_consumer_stream *stream;
int ret;
struct lttng_consumer_stream *stream;
int ret;
- stream = malloc(sizeof(*stream));
+ stream =
z
malloc(sizeof(*stream));
if (stream == NULL) {
perror("malloc struct lttng_consumer_stream");
goto end;
if (stream == NULL) {
perror("malloc struct lttng_consumer_stream");
goto end;
@@
-204,7
+205,8
@@
struct lttng_consumer_stream *consumer_allocate_stream(
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
break;
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
break;
- case LTTNG_CONSUMER_UST:
+ case LTTNG_CONSUMER32_UST:
+ case LTTNG_CONSUMER64_UST:
stream->cpu = stream->chan->cpucount++;
ret = lttng_ustconsumer_allocate_stream(stream);
if (ret) {
stream->cpu = stream->chan->cpucount++;
ret = lttng_ustconsumer_allocate_stream(stream);
if (ret) {
@@
-244,7
+246,8
@@
int consumer_add_stream(struct lttng_consumer_stream *stream)
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
break;
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
break;
- case LTTNG_CONSUMER_UST:
+ case LTTNG_CONSUMER32_UST:
+ case LTTNG_CONSUMER64_UST:
/* Streams are in CPU number order (we rely on this) */
stream->cpu = stream->chan->nr_streams++;
break;
/* Streams are in CPU number order (we rely on this) */
stream->cpu = stream->chan->nr_streams++;
break;
@@
-289,7
+292,8
@@
void consumer_del_channel(struct lttng_consumer_channel *channel)
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
break;
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
break;
- case LTTNG_CONSUMER_UST:
+ case LTTNG_CONSUMER32_UST:
+ case LTTNG_CONSUMER64_UST:
lttng_ustconsumer_del_channel(channel);
break;
default:
lttng_ustconsumer_del_channel(channel);
break;
default:
@@
-344,7
+348,8
@@
struct lttng_consumer_channel *consumer_allocate_channel(
channel->mmap_base = NULL;
channel->mmap_len = 0;
break;
channel->mmap_base = NULL;
channel->mmap_len = 0;
break;
- case LTTNG_CONSUMER_UST:
+ case LTTNG_CONSUMER32_UST:
+ case LTTNG_CONSUMER64_UST:
ret = lttng_ustconsumer_allocate_channel(channel);
if (ret) {
free(channel);
ret = lttng_ustconsumer_allocate_channel(channel);
if (ret) {
free(channel);
@@
-574,7
+579,7
@@
struct lttng_consumer_local_data *lttng_consumer_create(
consumer_data.type == type);
consumer_data.type = type;
consumer_data.type == type);
consumer_data.type = type;
- ctx = malloc(sizeof(struct lttng_consumer_local_data));
+ ctx =
z
malloc(sizeof(struct lttng_consumer_local_data));
if (ctx == NULL) {
perror("allocating context");
goto error;
if (ctx == NULL) {
perror("allocating context");
goto error;
@@
-656,7
+661,8
@@
int lttng_consumer_on_read_subbuffer_mmap(
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
return lttng_kconsumer_on_read_subbuffer_mmap(ctx, stream, len);
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
return lttng_kconsumer_on_read_subbuffer_mmap(ctx, stream, len);
- case LTTNG_CONSUMER_UST:
+ case LTTNG_CONSUMER32_UST:
+ case LTTNG_CONSUMER64_UST:
return lttng_ustconsumer_on_read_subbuffer_mmap(ctx, stream, len);
default:
ERR("Unknown consumer_data type");
return lttng_ustconsumer_on_read_subbuffer_mmap(ctx, stream, len);
default:
ERR("Unknown consumer_data type");
@@
-676,7
+682,8
@@
int lttng_consumer_on_read_subbuffer_splice(
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
return lttng_kconsumer_on_read_subbuffer_splice(ctx, stream, len);
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
return lttng_kconsumer_on_read_subbuffer_splice(ctx, stream, len);
- case LTTNG_CONSUMER_UST:
+ case LTTNG_CONSUMER32_UST:
+ case LTTNG_CONSUMER64_UST:
return -ENOSYS;
default:
ERR("Unknown consumer_data type");
return -ENOSYS;
default:
ERR("Unknown consumer_data type");
@@
-697,7
+704,8
@@
int lttng_consumer_take_snapshot(struct lttng_consumer_local_data *ctx,
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
return lttng_kconsumer_take_snapshot(ctx, stream);
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
return lttng_kconsumer_take_snapshot(ctx, stream);
- case LTTNG_CONSUMER_UST:
+ case LTTNG_CONSUMER32_UST:
+ case LTTNG_CONSUMER64_UST:
return lttng_ustconsumer_take_snapshot(ctx, stream);
default:
ERR("Unknown consumer_data type");
return lttng_ustconsumer_take_snapshot(ctx, stream);
default:
ERR("Unknown consumer_data type");
@@
-720,7
+728,8
@@
int lttng_consumer_get_produced_snapshot(
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
return lttng_kconsumer_get_produced_snapshot(ctx, stream, pos);
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
return lttng_kconsumer_get_produced_snapshot(ctx, stream, pos);
- case LTTNG_CONSUMER_UST:
+ case LTTNG_CONSUMER32_UST:
+ case LTTNG_CONSUMER64_UST:
return lttng_ustconsumer_get_produced_snapshot(ctx, stream, pos);
default:
ERR("Unknown consumer_data type");
return lttng_ustconsumer_get_produced_snapshot(ctx, stream, pos);
default:
ERR("Unknown consumer_data type");
@@
-735,7
+744,8
@@
int lttng_consumer_recv_cmd(struct lttng_consumer_local_data *ctx,
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
return lttng_kconsumer_recv_cmd(ctx, sock, consumer_sockpoll);
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
return lttng_kconsumer_recv_cmd(ctx, sock, consumer_sockpoll);
- case LTTNG_CONSUMER_UST:
+ case LTTNG_CONSUMER32_UST:
+ case LTTNG_CONSUMER64_UST:
return lttng_ustconsumer_recv_cmd(ctx, sock, consumer_sockpoll);
default:
ERR("Unknown consumer_data type");
return lttng_ustconsumer_recv_cmd(ctx, sock, consumer_sockpoll);
default:
ERR("Unknown consumer_data type");
@@
-760,7
+770,7
@@
void *lttng_consumer_thread_poll_fds(void *data)
int tmp2;
struct lttng_consumer_local_data *ctx = data;
int tmp2;
struct lttng_consumer_local_data *ctx = data;
- local_stream = malloc(sizeof(struct lttng_consumer_stream));
+ local_stream =
z
malloc(sizeof(struct lttng_consumer_stream));
while (1) {
high_prio = 0;
while (1) {
high_prio = 0;
@@
-782,7
+792,7
@@
void *lttng_consumer_thread_poll_fds(void *data)
}
/* allocate for all fds + 1 for the consumer_poll_pipe */
}
/* allocate for all fds + 1 for the consumer_poll_pipe */
- pollfd = malloc((consumer_data.stream_count + 1) * sizeof(struct pollfd));
+ pollfd =
z
malloc((consumer_data.stream_count + 1) * sizeof(struct pollfd));
if (pollfd == NULL) {
perror("pollfd malloc");
pthread_mutex_unlock(&consumer_data.lock);
if (pollfd == NULL) {
perror("pollfd malloc");
pthread_mutex_unlock(&consumer_data.lock);
@@
-790,7
+800,7
@@
void *lttng_consumer_thread_poll_fds(void *data)
}
/* allocate for all fds + 1 for the consumer_poll_pipe */
}
/* allocate for all fds + 1 for the consumer_poll_pipe */
- local_stream = malloc((consumer_data.stream_count + 1) *
+ local_stream =
z
malloc((consumer_data.stream_count + 1) *
sizeof(struct lttng_consumer_stream));
if (local_stream == NULL) {
perror("local_stream malloc");
sizeof(struct lttng_consumer_stream));
if (local_stream == NULL) {
perror("local_stream malloc");
@@
-862,17
+872,16
@@
void *lttng_consumer_thread_poll_fds(void *data)
num_hup++;
} else if ((pollfd[i].revents & POLLHUP) &&
!(pollfd[i].revents & POLLIN)) {
num_hup++;
} else if ((pollfd[i].revents & POLLHUP) &&
!(pollfd[i].revents & POLLIN)) {
- if (consumer_data.type == LTTNG_CONSUMER_UST) {
+ if (consumer_data.type == LTTNG_CONSUMER32_UST
+ || consumer_data.type == LTTNG_CONSUMER64_UST) {
DBG("Polling fd %d tells it has hung up. Attempting flush and read.",
pollfd[i].fd);
if (!local_stream[i]->hangup_flush_done) {
lttng_ustconsumer_on_stream_hangup(local_stream[i]);
DBG("Polling fd %d tells it has hung up. Attempting flush and read.",
pollfd[i].fd);
if (!local_stream[i]->hangup_flush_done) {
lttng_ustconsumer_on_stream_hangup(local_stream[i]);
- /* try reading after flush */
- ret = ctx->on_buffer_ready(local_stream[i], ctx);
- /* it's ok to have an unavailable sub-buffer */
- if (ret == EAGAIN) {
- ret = 0;
- }
+ /* read after flush */
+ do {
+ ret = ctx->on_buffer_ready(local_stream[i], ctx);
+ } while (ret == EAGAIN);
}
} else {
DBG("Polling fd %d tells it has hung up.", pollfd[i].fd);
}
} else {
DBG("Polling fd %d tells it has hung up.", pollfd[i].fd);
@@
-1036,7
+1045,8
@@
int lttng_consumer_read_subbuffer(struct lttng_consumer_stream *stream,
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
return lttng_kconsumer_read_subbuffer(stream, ctx);
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
return lttng_kconsumer_read_subbuffer(stream, ctx);
- case LTTNG_CONSUMER_UST:
+ case LTTNG_CONSUMER32_UST:
+ case LTTNG_CONSUMER64_UST:
return lttng_ustconsumer_read_subbuffer(stream, ctx);
default:
ERR("Unknown consumer_data type");
return lttng_ustconsumer_read_subbuffer(stream, ctx);
default:
ERR("Unknown consumer_data type");
@@
-1050,7
+1060,8
@@
int lttng_consumer_on_recv_stream(struct lttng_consumer_stream *stream)
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
return lttng_kconsumer_on_recv_stream(stream);
switch (consumer_data.type) {
case LTTNG_CONSUMER_KERNEL:
return lttng_kconsumer_on_recv_stream(stream);
- case LTTNG_CONSUMER_UST:
+ case LTTNG_CONSUMER32_UST:
+ case LTTNG_CONSUMER64_UST:
return lttng_ustconsumer_on_recv_stream(stream);
default:
ERR("Unknown consumer_data type");
return lttng_ustconsumer_on_recv_stream(stream);
default:
ERR("Unknown consumer_data type");
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