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timediff: return timediff_t from the time diff functions

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... to cater for systems with unsigned time_t variables.

- Renamed the functions to curlx_timediff and Curl_timediff_us.

- Added overflow protection for both of them in either direction for
  both 32 bit and 64 bit time_ts

- Reprefixed the curlx_time functions to use Curl_*

Reported-by: Peter Piekarski
Fixes #2004
Closes #2005
This commit is contained in:
Daniel Stenberg 2017-10-23 12:05:49 +02:00
parent 016c6a6abb
commit b9d25f9a6b
22 changed files with 214 additions and 110 deletions
Download patch file Download diff file Expand all files Collapse all files

8
lib/select.c
View file

@ -51,7 +51,7 @@
#include "warnless.h"
/* Convenience local macros */
#define ELAPSED_MS() (int)curlx_tvdiff(curlx_tvnow(), initial_tv)
#define ELAPSED_MS() (int)Curl_timediff(Curl_tvnow(), initial_tv)
int Curl_ack_eintr = 0;
#define ERROR_NOT_EINTR(error) (Curl_ack_eintr || error != EINTR)
@ -96,7 +96,7 @@ int Curl_wait_ms(int timeout_ms)
Sleep(timeout_ms);
#else
pending_ms = timeout_ms;
initial_tv = curlx_tvnow();
initial_tv = Curl_tvnow();
do {
#if defined(HAVE_POLL_FINE)
r = poll(NULL, 0, pending_ms);
@ -184,7 +184,7 @@ int Curl_socket_check(curl_socket_t readfd0, /* two sockets to read from */
if(timeout_ms > 0) {
pending_ms = (int)timeout_ms;
initial_tv = curlx_tvnow();
initial_tv = Curl_tvnow();
}
#ifdef HAVE_POLL_FINE
@ -425,7 +425,7 @@ int Curl_poll(struct pollfd ufds[], unsigned int nfds, int timeout_ms)
if(timeout_ms > 0) {
pending_ms = timeout_ms;
initial_tv = curlx_tvnow();
initial_tv = Curl_tvnow();
}
#ifdef HAVE_POLL_FINE