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errors: check for an error before prefixing

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Minor tweak to the new `GLNX_AUTO_PREFIX_ERROR`. Since the common case
is that there's no errors, let's bring down the same check that
`g_prefix_error` does to avoid a function call most of the time.
This commit is contained in:
Jonathan Lebon
2017-07-21 14:07:12 -07:00
parent 7d6a31fb93
commit c820571bc4
1 changed files with 3 additions and 2 deletions
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5
glnx-errors.h
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@@ -94,7 +94,7 @@ glnx_prefix_error (GError **error, const char *fmt, ...)
* ```
* gboolean start_http_request (..., GError **error)
* {
* GLNX_AUTO_PREFIX_ERROR("HTTP request", error)
* GLNX_AUTO_PREFIX_ERROR ("HTTP request", error)
*
* if (!libhttp_request_start (..., error))
* return FALSE;
@@ -109,7 +109,8 @@ typedef struct {
static inline void
glnx_cleanup_auto_prefix_error (GLnxAutoErrorPrefix *prefix)
{
g_prefix_error (prefix->error, "%s: ", prefix->prefix);
if (prefix->error && *(prefix->error))
g_prefix_error (prefix->error, "%s: ", prefix->prefix);
}
G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(GLnxAutoErrorPrefix, glnx_cleanup_auto_prefix_error)
#define GLNX_AUTO_PREFIX_ERROR(text, error) \