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multi: handle errors returned from socket/timer callbacks

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The callbacks were partially documented to support this. Now the
behavior is documented and returning error from either of these
callbacks will effectively kill all currently ongoing transfers.

Added test 530 to verify

Reported-by: Marcelo Juchem
Fixes #8083
Closes #8089
This commit is contained in:
Daniel Stenberg 2021-12-02 13:57:38 +01:00
parent b3f9c1aa09
commit 2b3dd01b77
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GPG key ID: 5CC908FDB71E12C2
14 changed files with 574 additions and 67 deletions
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4
lib/multiif.h
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@ -26,11 +26,11 @@
* Prototypes for library-wide functions provided by multi.c
*/
void Curl_updatesocket(struct Curl_easy *data);
CURLcode Curl_updatesocket(struct Curl_easy *data);
void Curl_expire(struct Curl_easy *data, timediff_t milli, expire_id);
void Curl_expire_clear(struct Curl_easy *data);
void Curl_expire_done(struct Curl_easy *data, expire_id id);
void Curl_update_timer(struct Curl_multi *multi);
CURLMcode Curl_update_timer(struct Curl_multi *multi) WARN_UNUSED_RESULT;
void Curl_attach_connnection(struct Curl_easy *data,
struct connectdata *conn);
void Curl_detach_connnection(struct Curl_easy *data);