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Str mem leak rebased (#185)

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* * memory leak issues

address those memory leak issues with the API
rcutils_set_formatted_error which is defined
in rcutils

Signed-off-by: Ethan Gao <ethan.gao@linux.intel.com>

* * Address those memory leak issues with new MACRO
add macro RCL_SET_ERROR_MSG_WITH_FORMAT_STRING which
is equals RCUTILS_SET_ERROR_MSG_WITH_FORMAT_STRING and
fix the memory leak issues with it

Signed-off-by: Ethan Gao <ethan.gao@linux.intel.com>

* address uncrustify grumble

Signed-off-by: Ethan Gao <ethan.gao@linux.intel.com>
This commit is contained in:
Ethan Gao 2017-11-17 15:25:02 +08:00 • committed by Mikael Arguedas
parent b40eff9b9e
commit 54d06f5654
3 changed files with 9 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

3
rcl/include/rcl/error_handling.h
View file

@ -45,6 +45,9 @@ typedef rcutils_error_state_t rcl_error_state_t;
#define RCL_SET_ERROR_MSG(msg, allocator) RCUTILS_SET_ERROR_MSG(msg, allocator)
#define RCL_SET_ERROR_MSG_WITH_FORMAT_STRING(allocator, fmt_str, ...) \
RCUTILS_SET_ERROR_MSG_WITH_FORMAT_STRING(allocator, fmt_str, __VA_ARGS__)
#define rcl_error_is_set rcutils_error_is_set
#define rcl_get_error_state rcutils_get_error_state

10
rcl/src/rcl/expand_topic_name.c
View file

@ -166,20 +166,14 @@ rcl_expand_topic_name(
*output_topic_name = NULL;
char * unmatched_substitution =
rcutils_strndup(next_opening_brace, substitution_substr_len, allocator);
char * allocated_msg = NULL;
char * msg = NULL;
if (unmatched_substitution) {
allocated_msg = rcutils_format_string(
RCL_SET_ERROR_MSG_WITH_FORMAT_STRING(
allocator,
"unknown substitution: %s", unmatched_substitution);
msg = allocated_msg;
} else {
RCUTILS_SAFE_FWRITE_TO_STDERR("failed to allocate memory for error message\n");
msg = "unknown substitution: allocation failed when reporting error";
RCUTILS_SAFE_FWRITE_TO_STDERR("failed to allocate memory for unmatched substitution\n");
}
RCL_SET_ERROR_MSG(msg, allocator)
allocator.deallocate(unmatched_substitution, allocator.state);
allocator.deallocate(allocated_msg, allocator.state);
allocator.deallocate(local_output, allocator.state);
return RCL_RET_UNKNOWN_SUBSTITUTION;
}