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make invocation to ReadProcessOutput() on Windows non-blocking

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moe li 2026-05-25 17:01:25 +08:00
parent 05e35b81f6
commit b58608043d
1 changed files with 16 additions and 0 deletions
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16
src/rcore.c
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@ -271,6 +271,13 @@
void **hWritePipe, void **hWritePipe,
struct _SECURITY_ATTRIBUTES *lpPipeAttributes, struct _SECURITY_ATTRIBUTES *lpPipeAttributes,
unsigned long nSize); unsigned long nSize);
__declspec(dllimport) int __stdcall PeekNamedPipe(
void *hNamedPipe,
void *lpBuffer,
unsigned long nBufferSize,
unsigned long *lpBytesRead,
unsigned long *lpTotalBytesAvail,
unsigned long *lpBytesLeftThisMessage);
__declspec(dllimport) int __stdcall ReadFile( __declspec(dllimport) int __stdcall ReadFile(
void *hFile, void *hFile,
void *lpBuffer, void *lpBuffer,
@ -4615,6 +4622,15 @@ RLAPI const char *ReadProcessOutput(Process process, int *length)
// Read from output pipe // Read from output pipe
// NOTE: This will read whatever in the pipe buffer // NOTE: This will read whatever in the pipe buffer
// ReadFile will block if there is no data, so call PeekNamedPipe to check for data before reading
unsigned long bytesAvail = 0;
if ((!PeekNamedPipe(process.internal->pipeStdoutRead, NULL, 0, NULL, &bytesAvail, NULL)) ||
(bytesAvail == 0))
{
*length = 0;
return NULL;
}
unsigned long bytesRead = 0; unsigned long bytesRead = 0;
if (!ReadFile(process.internal->pipeStdoutRead, output, sizeof(output), &bytesRead, NULL)) if (!ReadFile(process.internal->pipeStdoutRead, output, sizeof(output), &bytesRead, NULL))
{ {