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un-atomicize

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rjkiv 2025-07-26 21:26:14 -07:00
parent 57cb392654
commit d88a4c9530
1 changed files with 10 additions and 4 deletions
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14
dll/kernel32.cpp
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@ -87,10 +87,6 @@ namespace kernel32 {
}
}
LONG InterlockedCompareExchange(volatile LONG* destination, LONG exchange, LONG comperand){
return __sync_val_compare_and_swap(destination, comperand, exchange);
}
int64_t getFileSize(void* hFile) {
FILE *fp = files::fpFromHandle(hFile);
struct stat64 st;
@ -2232,6 +2228,15 @@ namespace kernel32 {
return initial;
}
LONG WIN_FUNC InterlockedCompareExchange(volatile LONG* destination, LONG exchange, LONG comperand){
LONG original = *destination;
if (original == comperand) {
*destination = exchange;
}
return original;
// return __sync_val_compare_and_swap(destination, comperand, exchange); if we want to maintain the atomic behavior
}
// These are effectively a copy/paste of the Tls* functions
enum { MAX_FLS_VALUES = 100 };
static bool flsValuesUsed[MAX_FLS_VALUES] = { false };
@ -2485,6 +2490,7 @@ static void *resolveByName(const char *name) {
if (strcmp(name, "InterlockedIncrement") == 0) return (void *) kernel32::InterlockedIncrement;
if (strcmp(name, "InterlockedDecrement") == 0) return (void *) kernel32::InterlockedDecrement;
if (strcmp(name, "InterlockedExchange") == 0) return (void *) kernel32::InterlockedExchange;
if (strcmp(name, "InterlockedCompareExchange") == 0) return (void*) kernel32::InterlockedCompareExchange;
// fibersapi.h
if (strcmp(name, "FlsAlloc") == 0) return (void *) kernel32::FlsAlloc;