[PATCH v3] win32: fix thread usage for win32

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From: Seija Kijin <doremylover123@xxxxxxxxx>

Use _beginthreadex instead of CreateThread
since we use the Windows CRT,
as Microsoft recommends _beginthreadex
over CreateThread for these situations.

Finally, check for NULL handles, not "INVALID_HANDLE,"
as _beginthreadex guarantees a valid handle in most cases

Signed-off-by: Seija Kijin <doremylover123@xxxxxxxxx>
---
    win32: fix thread usage for win32
    
    Use pthread_exit instead of async_exit.
    
    This means we do not have to deal with Windows's implementation
    requiring an unsigned exit coded despite the POSIX exit code requiring a
    signed exit code.
    
    Use _beginthreadex instead of CreateThread since we use the Windows CRT.
    
    Finally, check for NULL handles, not "INVALID_HANDLE," as _beginthreadex
    guarantees a valid handle in most cases
    
    Signed-off-by: Seija Kijin doremylover123@xxxxxxxxx

Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-1440%2FAtariDreams%2FCreateThread-v3
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-1440/AtariDreams/CreateThread-v3
Pull-Request: https://github.com/git/git/pull/1440

Range-diff vs v2:

 1:  4a2c3da9d4c ! 1:  68baafba2bd win32: fix thread usage for win32
     @@ Commit message
          win32: fix thread usage for win32
      
          Use _beginthreadex instead of CreateThread
     -    since we use the Windows CRT.
     +    since we use the Windows CRT,
     +    as Microsoft recommends _beginthreadex
     +    over CreateThread for these situations.
      
          Finally, check for NULL handles, not "INVALID_HANDLE,"
          as _beginthreadex guarantees a valid handle in most cases


 compat/mingw.c   | 2 +-
 compat/winansi.c | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/compat/mingw.c b/compat/mingw.c
index e433740381b..715f1c87e11 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -2291,7 +2291,7 @@ static int start_timer_thread(void)
 	timer_event = CreateEvent(NULL, FALSE, FALSE, NULL);
 	if (timer_event) {
 		timer_thread = (HANDLE) _beginthreadex(NULL, 0, ticktack, NULL, 0, NULL);
-		if (!timer_thread )
+		if (!timer_thread)
 			return errno = ENOMEM,
 				error("cannot start timer thread");
 	} else
diff --git a/compat/winansi.c b/compat/winansi.c
index 3abe8dd5a27..be65b27bd75 100644
--- a/compat/winansi.c
+++ b/compat/winansi.c
@@ -340,7 +340,7 @@ enum {
 	TEXT = 0, ESCAPE = 033, BRACKET = '['
 };
 
-static DWORD WINAPI console_thread(LPVOID unused)
+static unsigned int WINAPI console_thread(LPVOID unused)
 {
 	unsigned char buffer[BUFFER_SIZE];
 	DWORD bytes;
@@ -643,9 +643,9 @@ void winansi_init(void)
 		die_lasterr("CreateFile for named pipe failed");
 
 	/* start console spool thread on the pipe's read end */
-	hthread = CreateThread(NULL, 0, console_thread, NULL, 0, NULL);
-	if (hthread == INVALID_HANDLE_VALUE)
-		die_lasterr("CreateThread(console_thread) failed");
+	hthread = (HANDLE)_beginthreadex(NULL, 0, console_thread, NULL, 0, NULL);
+	if (!hthread)
+		die_lasterr("_beginthreadex(console_thread) failed");
 
 	/* schedule cleanup routine */
 	if (atexit(winansi_exit))

base-commit: 56c8fb1e95377900ec9d53c07886022af0a5d3c2
-- 
gitgitgadget



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