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curl_multi_wait: avoid an unnecessary memory allocation

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Daniel Stenberg 2012-12-23 21:06:40 +01:00 committed by Yang Tse
parent dfe382c6ae
commit a1fc9b80c8
1 changed files with 4 additions and 3 deletions
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7
lib/multi.c
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@ -900,7 +900,7 @@ CURLMcode curl_multi_wait(CURLM *multi_handle,
int bitmap; int bitmap;
unsigned int i; unsigned int i;
unsigned int nfds = extra_nfds; unsigned int nfds = extra_nfds;
struct pollfd *ufds; struct pollfd *ufds = NULL;
if(!GOOD_MULTI_HANDLE(multi)) if(!GOOD_MULTI_HANDLE(multi))
return CURLM_BAD_HANDLE; return CURLM_BAD_HANDLE;
@ -929,7 +929,8 @@ CURLMcode curl_multi_wait(CURLM *multi_handle,
easy = easy->next; /* check next handle */ easy = easy->next; /* check next handle */
} }
ufds = (struct pollfd *)malloc(nfds * sizeof(struct pollfd)); if(nfds)
ufds = (struct pollfd *)malloc(nfds * sizeof(struct pollfd));
nfds = 0; nfds = 0;
/* Add the curl handles to our pollfds first */ /* Add the curl handles to our pollfds first */
@ -979,7 +980,7 @@ CURLMcode curl_multi_wait(CURLM *multi_handle,
else else
i = 0; i = 0;
free(ufds); Curl_safefree(ufds);
if(ret) if(ret)
*ret = i; *ret = i;
return CURLM_OK; return CURLM_OK;