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Get fork() working on Windows

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This is done without using Microsoft's internal APIs. MAP_PRIVATE
mappings are copied to the subprocess via a pipe, since Microsoft
doesn't want us to have proper COW pages. MAP_SHARED mappings are
remapped without needing to do any copying. Global variables need
copying along with the stack and the whole heap of anonymous mem.
This actually improves the reliability of the redbean http server
although one shouldn't expect 10k+ connections on a home computer
that isn't running software built to serve like Linux or FreeBSD.
This commit is contained in:
Justine Tunney 2020-11-13 01:27:49 -08:00
parent aea89fe832
commit db33973e0a
105 changed files with 1476 additions and 912 deletions
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4
libc/nt/synchronization.h
View file

@ -48,11 +48,11 @@ void GetSystemTimeAsFileTime(struct NtFileTime *); // win8+
void GetSystemTimePreciseAsFileTime(struct NtFileTime *); // win8+
uint32_t WaitForSingleObject(int64_t hHandle, uint32_t dwMilliseconds);
uint32_t WaitForMultipleObjects(uint32_t nCount, const void **lpHandles,
uint32_t WaitForMultipleObjects(uint32_t nCount, const int64_t *lpHandles,
bool32 bWaitAll, uint32_t dwMilliseconds);
uint32_t WaitForSingleObjectEx(int64_t hHandle, uint32_t dwMilliseconds,
bool32 bAlertable);
uint32_t WaitForMultipleObjectsEx(unsigned int nCount, const void **lpHandles,
uint32_t WaitForMultipleObjectsEx(unsigned int nCount, const int64_t *lpHandles,
bool32 bWaitAll, uint32_t dwMilliseconds,
bool32 bAlertable);