static void THRefcountedMapAllocator_free(void* ctx_, void* data) {
THMapAllocatorContext *ctx = ctx_;
#ifdef _WIN32
THMapInfo *info = (THMapInfo*)(((char*)data) - TH_ALLOC_ALIGNMENT);
if (THAtomicDecrementRef(&info->refcount)) {
CloseHandle(ctx->handle);
}
if(UnmapViewOfFile(data) == 0)
THError("could not unmap the shared memory file");
#else /* _WIN32 */
THMapInfo *info = (THMapInfo*)(((char*)data) - TH_ALLOC_ALIGNMENT);
if (THAtomicDecrementRef(&info->refcount)) {
#ifdef HAVE_SHM_UNLINK
if (shm_unlink(ctx->filename) == -1)
THError("could not unlink the shared memory file %s", ctx->filename);
#else
THError("could not unlink the shared memory file %s, shm_unlink not available on platform", ctx->filename);
#endif /* HAVE_SHM_UNLINK */
}
if (munmap(info, ctx->size))
THError("could not unmap the shared memory file %s", ctx->filename);
#endif /* _WIN32 */
THMapAllocatorContext_free(ctx);
}
static void THMapAllocator_free(void* ctx_, void* data) {
THMapAllocatorContext *ctx = ctx_;
#ifdef _WIN32
if(UnmapViewOfFile(data) == 0)
THError("could not unmap the shared memory file");
#else /* _WIN32 */
if (ctx->flags & TH_ALLOCATOR_MAPPED_KEEPFD) {
if (close(ctx->fd) == -1)
THError("could not close file descriptor %d", ctx->fd);
}
if (munmap(data, ctx->size))
THError("could not unmap the shared memory file");
if (!(ctx->flags & (TH_ALLOCATOR_MAPPED_FROMFD | TH_ALLOCATOR_MAPPED_UNLINK)))
{
if (ctx->flags & TH_ALLOCATOR_MAPPED_SHAREDMEM)
{
#ifdef HAVE_SHM_UNLINK
if (shm_unlink(ctx->filename) == -1)
THError("could not unlink the shared memory file %s", ctx->filename);
#else
THError("could not unlink the shared memory file %s, shm_unlink not available on platform", ctx->filename);
#endif
}
}
#endif /* _WIN32 */
THMapAllocatorContext_free(ctx);
}