#include <lttng/ust-events.h>
#include <lttng/ust-abi.h>
#include <lttng/ust.h>
+#include <lttng/ust-error.h>
#include <ust-comm.h>
#include <usterr-signal-safe.h>
#include <helper.h>
case sizeof(*lur):
DBG("message successfully sent");
return 0;
- case -1:
- if (errno == ECONNRESET) {
- printf("remote end closed connection\n");
+ default:
+ if (len == -ECONNRESET) {
+ DBG("remote end closed connection");
return 0;
}
- return -1;
- default:
- printf("incorrect message size: %zd\n", len);
- return -1;
+ if (len < 0)
+ return len;
+ DBG("incorrect message size: %zd", len);
+ return -EINVAL;
}
}
struct lttng_ust_filter_bytecode *bytecode;
if (lum->u.filter.data_size > FILTER_BYTECODE_MAX_LEN) {
- ERR("Filter data size is too large: %u bytes\n",
+ ERR("Filter data size is too large: %u bytes",
lum->u.filter.data_size);
ret = -EINVAL;
goto error;
}
if (lum->u.filter.reloc_offset > lum->u.filter.data_size) {
- ERR("Filter reloc offset %u is not within data\n",
+ ERR("Filter reloc offset %u is not within data",
lum->u.filter.reloc_offset);
ret = -EINVAL;
goto error;
ret = 0;
free(bytecode);
goto error;
- case -1:
- DBG("Receive failed from lttng-sessiond with errno %d", errno);
- if (errno == ECONNRESET) {
- ERR("%s remote end closed connection\n", sock_info->name);
- ret = -EINVAL;
- free(bytecode);
- goto error;
- }
- ret = -EINVAL;
- goto end;
default:
if (len == lum->u.filter.data_size) {
- DBG("filter data received\n");
+ DBG("filter data received");
break;
+ } else if (len < 0) {
+ DBG("Receive failed from lttng-sessiond with errno %d", (int) -len);
+ if (len == -ECONNRESET) {
+ ERR("%s remote end closed connection", sock_info->name);
+ ret = len;
+ free(bytecode);
+ goto error;
+ }
+ ret = len;
+ goto end;
} else {
- ERR("incorrect filter data message size: %zd\n", len);
+ DBG("incorrect filter data message size: %zd", len);
ret = -EINVAL;
free(bytecode);
goto end;
lur.cmd = lum->cmd;
lur.ret_val = ret;
if (ret >= 0) {
- lur.ret_code = USTCOMM_OK;
+ lur.ret_code = LTTNG_UST_OK;
} else {
- //lur.ret_code = USTCOMM_SESSION_FAIL;
- lur.ret_code = ret;
+ /*
+ * Use -LTTNG_UST_ERR as wildcard for UST internal
+ * error that are not caused by the transport, except if
+ * we already have a more precise error message to
+ * report.
+ */
+ if (ret > -LTTNG_UST_ERR)
+ lur.ret_code = -LTTNG_UST_ERR;
+ else
+ lur.ret_code = ret;
}
if (ret >= 0) {
switch (lum->cmd) {
}
ret = send_reply(sock, &lur);
if (ret < 0) {
- perror("error sending reply");
+ DBG("error sending reply");
goto error;
}
if ((lum->cmd == LTTNG_UST_STREAM
|| lum->cmd == LTTNG_UST_CHANNEL
|| lum->cmd == LTTNG_UST_METADATA)
- && lur.ret_code == USTCOMM_OK) {
+ && lur.ret_code == LTTNG_UST_OK) {
int sendret = 0;
/* we also need to send the file descriptors. */
&shm_fd, &shm_fd,
1, sizeof(int));
if (ret < 0) {
- perror("send shm_fd");
+ ERR("send shm_fd");
sendret = ret;
}
/*
* LTTNG_UST_TRACEPOINT_FIELD_LIST_GET needs to send the field
* after the reply.
*/
- if (lur.ret_code == USTCOMM_OK) {
+ if (lur.ret_code == LTTNG_UST_OK) {
switch (lum->cmd) {
case LTTNG_UST_TRACEPOINT_FIELD_LIST_GET:
len = ustcomm_send_unix_sock(sock,
&args.field_list.entry,
sizeof(args.field_list.entry));
+ if (len < 0) {
+ ret = len;
+ goto error;
+ }
if (len != sizeof(args.field_list.entry)) {
- ret = -1;
+ ret = -EINVAL;
goto error;
}
}
* that we keep the write side of the wait_fd open, but close
* the read side.
*/
- if (lur.ret_code == USTCOMM_OK) {
+ if (lur.ret_code == LTTNG_UST_OK) {
switch (lum->cmd) {
case LTTNG_UST_STREAM:
if (shm_fd >= 0) {
len = ustcomm_recv_unix_sock(sock, &lum, sizeof(lum));
switch (len) {
case 0: /* orderly shutdown */
- DBG("%s ltt-sessiond has performed an orderly shutdown\n", sock_info->name);
+ DBG("%s ltt-sessiond has performed an orderly shutdown", sock_info->name);
ust_lock();
/*
* Either sessiond has shutdown or refused us by closing the socket.
ust_unlock();
goto end;
case sizeof(lum):
- DBG("message received\n");
+ DBG("message received");
ret = handle_message(sock_info, sock, &lum);
- if (ret < 0) {
+ if (ret) {
ERR("Error handling message for %s socket", sock_info->name);
}
continue;
- case -1:
- DBG("Receive failed from lttng-sessiond with errno %d", errno);
- if (errno == ECONNRESET) {
- ERR("%s remote end closed connection\n", sock_info->name);
+ default:
+ if (len < 0) {
+ DBG("Receive failed from lttng-sessiond with errno %d", (int) -len);
+ } else {
+ DBG("incorrect message size (%s socket): %zd", sock_info->name, len);
+ }
+ if (len == -ECONNRESET) {
+ DBG("%s remote end closed connection", sock_info->name);
goto end;
}
goto end;
- default:
- ERR("incorrect message size (%s socket): %zd\n", sock_info->name, len);
- continue;
}
}
* sessiond monitoring thread: monitor presence of global and per-user
* sessiond by polling the application common named pipe.
*/
-/* TODO */
-
void __attribute__((constructor)) lttng_ust_init(void)
{
struct timespec constructor_timeout;
projects / lttng-ust.git / blobdiff