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Update llama-mmap to use ftello/fseeko (#22497)

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* Update llama-mmap to work with 32-bit wasm and >2GB models

* Update to gguf.cpp style
This commit is contained in:
Reese Levine
2026-04-30 14:17:52 -07:00
committed by GitHub
parent beb42fffa4
commit 5cbfb18075
1 changed files with 10 additions and 2 deletions
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src/llama-mmap.cpp
+10 -2
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@@ -40,6 +40,14 @@
#include <TargetConditionals.h>
#endif
#ifdef _WIN32
# define llama_mmap_ftell _ftelli64
# define llama_mmap_fseek _fseeki64
#else
# define llama_mmap_ftell ftello
# define llama_mmap_fseek fseeko
#endif
// TODO: consider moving to llama-impl.h if needed in more places
#if defined(_WIN32)
static std::string llama_format_win_err(DWORD err) {
@@ -226,7 +234,7 @@ struct llama_file::impl {
size_t tell() const {
if (fd == -1) {
long ret = std::ftell(fp);
off_t ret = llama_mmap_ftell(fp);
if (ret == -1) {
throw std::runtime_error(format("ftell error: %s", strerror(errno)));
}
@@ -244,7 +252,7 @@ struct llama_file::impl {
void seek(size_t offset, int whence) const {
off_t ret = 0;
if (fd == -1) {
ret = std::fseek(fp, (long) offset, whence);
ret = llama_mmap_fseek(fp, offset, whence);
} else {
ret = lseek(fd, offset, whence);
}