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esx: Wrap libcurl multi handle

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This commit is contained in:
Matthias Bolte 2012-07-02 22:52:48 +02:00
parent 6068754670
commit 017edaf79a
2 changed files with 129 additions and 0 deletions
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111
src/esx/esx_vi.c
View File

@ -86,6 +86,7 @@ ESX_VI__TEMPLATE__ALLOC(CURL)
ESX_VI__TEMPLATE__FREE(CURL,
{
esxVI_SharedCURL *shared = item->shared;
esxVI_MultiCURL *multi = item->multi;
if (shared != NULL) {
esxVI_SharedCURL_Remove(shared, item);
@ -95,6 +96,14 @@ ESX_VI__TEMPLATE__FREE(CURL,
}
}
if (multi != NULL) {
esxVI_MultiCURL_Remove(multi, item);
if (multi->count == 0) {
esxVI_MultiCURL_Free(&multi);
}
}
if (item->handle != NULL) {
curl_easy_cleanup(item->handle);
}
@ -555,11 +564,15 @@ esxVI_SharedCURL_Add(esxVI_SharedCURL *shared, esxVI_CURL *curl)
}
}
virMutexLock(&curl->lock);
curl_easy_setopt(curl->handle, CURLOPT_SHARE, shared->handle);
curl->shared = shared;
++shared->count;
virMutexUnlock(&curl->lock);
return 0;
}
@ -583,11 +596,109 @@ esxVI_SharedCURL_Remove(esxVI_SharedCURL *shared, esxVI_CURL *curl)
return -1;
}
virMutexLock(&curl->lock);
curl_easy_setopt(curl->handle, CURLOPT_SHARE, NULL);
curl->shared = NULL;
--shared->count;
virMutexUnlock(&curl->lock);
return 0;
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* MultiCURL
*/
/* esxVI_MultiCURL_Alloc */
ESX_VI__TEMPLATE__ALLOC(MultiCURL)
/* esxVI_MultiCURL_Free */
ESX_VI__TEMPLATE__FREE(MultiCURL,
{
if (item->count > 0) {
/* Better leak than crash */
VIR_ERROR(_("Trying to free MultiCURL object that is still in use"));
return;
}
if (item->handle != NULL) {
curl_multi_cleanup(item->handle);
}
})
int
esxVI_MultiCURL_Add(esxVI_MultiCURL *multi, esxVI_CURL *curl)
{
if (curl->handle == NULL) {
ESX_VI_ERROR(VIR_ERR_INTERNAL_ERROR, "%s",
_("Cannot add uninitialized CURL handle to a multi handle"));
return -1;
}
if (curl->multi != NULL) {
ESX_VI_ERROR(VIR_ERR_INTERNAL_ERROR, "%s",
_("Cannot add CURL handle to a multi handle twice"));
return -1;
}
if (multi->handle == NULL) {
multi->handle = curl_multi_init();
if (multi->handle == NULL) {
ESX_VI_ERROR(VIR_ERR_INTERNAL_ERROR, "%s",
_("Could not initialize CURL (multi)"));
return -1;
}
}
virMutexLock(&curl->lock);
curl_multi_add_handle(multi->handle, curl->handle);
curl->multi = multi;
++multi->count;
virMutexUnlock(&curl->lock);
return 0;
}
int
esxVI_MultiCURL_Remove(esxVI_MultiCURL *multi, esxVI_CURL *curl)
{
if (curl->handle == NULL) {
ESX_VI_ERROR(VIR_ERR_INTERNAL_ERROR, "%s",
_("Cannot remove uninitialized CURL handle from a "
"multi handle"));
return -1;
}
if (curl->multi == NULL) {
ESX_VI_ERROR(VIR_ERR_INTERNAL_ERROR, "%s",
_("Cannot remove CURL handle from a multi handle when it "
"wasn't added before"));
return -1;
}
if (curl->multi != multi) {
ESX_VI_ERROR(VIR_ERR_INTERNAL_ERROR, "%s", _("CURL (multi) mismatch"));
return -1;
}
virMutexLock(&curl->lock);
curl_multi_remove_handle(multi->handle, curl->handle);
curl->multi = NULL;
--multi->count;
virMutexUnlock(&curl->lock);
return 0;
}

18
src/esx/esx_vi.h
View File

@ -85,6 +85,7 @@ typedef enum _esxVI_Occurrence esxVI_Occurrence;
typedef struct _esxVI_ParsedHostCpuIdInfo esxVI_ParsedHostCpuIdInfo;
typedef struct _esxVI_CURL esxVI_CURL;
typedef struct _esxVI_SharedCURL esxVI_SharedCURL;
typedef struct _esxVI_MultiCURL esxVI_MultiCURL;
typedef struct _esxVI_Context esxVI_Context;
typedef struct _esxVI_Response esxVI_Response;
typedef struct _esxVI_Enumeration esxVI_Enumeration;
@ -160,6 +161,7 @@ struct _esxVI_CURL {
struct curl_slist *headers;
char error[CURL_ERROR_SIZE];
esxVI_SharedCURL *shared;
esxVI_MultiCURL *multi;
};
int esxVI_CURL_Alloc(esxVI_CURL **curl);
@ -187,6 +189,22 @@ int esxVI_SharedCURL_Remove(esxVI_SharedCURL *shared, esxVI_CURL *curl);
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* MultiCURL
*/
struct _esxVI_MultiCURL {
CURLM *handle;
size_t count;
};
int esxVI_MultiCURL_Alloc(esxVI_MultiCURL **multi);
void esxVI_MultiCURL_Free(esxVI_MultiCURL **multi);
int esxVI_MultiCURL_Add(esxVI_MultiCURL *multi, esxVI_CURL *curl);
int esxVI_MultiCURL_Remove(esxVI_MultiCURL *multi, esxVI_CURL *curl);
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Context
*/