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llama.cpp
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gguf : fix ftell/fseek for Windows (#19870)

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Aldehir Rojas 2026-02-24 22:58:11 -06:00 committed by GitHub
parent 244641955f
commit a96a1120b4
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1 changed files with 16 additions and 8 deletions
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24
ggml/src/gguf.cpp
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@ -18,6 +18,14 @@
#define GGUF_MAX_STRING_LENGTH (1024*1024*1024) #define GGUF_MAX_STRING_LENGTH (1024*1024*1024)
#define GGUF_MAX_ARRAY_ELEMENTS (1024*1024*1024) #define GGUF_MAX_ARRAY_ELEMENTS (1024*1024*1024)
#ifdef _WIN32
# define gguf_ftell _ftelli64
# define gguf_fseek _fseeki64
#else
# define gguf_ftell ftello
# define gguf_fseek fseeko
#endif
template <typename T> template <typename T>
struct type_to_gguf_type; struct type_to_gguf_type;
@ -319,22 +327,22 @@ struct gguf_reader {
// remaining bytes in the file // remaining bytes in the file
uint64_t nbytes_remain() const { uint64_t nbytes_remain() const {
const long cur = ftell(file); const int64_t cur = gguf_ftell(file);
if (cur < 0) { if (cur < 0) {
return 0; return 0;
} }
if (fseek(file, 0, SEEK_END) != 0) { if (gguf_fseek(file, 0, SEEK_END) != 0) {
fseek(file, cur, SEEK_SET); gguf_fseek(file, cur, SEEK_SET);
return 0; return 0;
} }
const long end = ftell(file); const int64_t end = gguf_ftell(file);
if (end < 0) { if (end < 0) {
fseek(file, cur, SEEK_SET); gguf_fseek(file, cur, SEEK_SET);
return 0; return 0;
} }
fseek(file, cur, SEEK_SET); gguf_fseek(file, cur, SEEK_SET);
return static_cast<uint64_t>(end - cur); return static_cast<uint64_t>(end - cur);
} }
}; };
@ -671,14 +679,14 @@ struct gguf_context * gguf_init_from_file_impl(FILE * file, struct gguf_init_par
GGML_ASSERT(int64_t(ctx->info.size()) == n_tensors); GGML_ASSERT(int64_t(ctx->info.size()) == n_tensors);
// we require the data section to be aligned, so take into account any padding // we require the data section to be aligned, so take into account any padding
if (fseek(file, GGML_PAD(ftell(file), ctx->alignment), SEEK_SET) != 0) { if (gguf_fseek(file, GGML_PAD(gguf_ftell(file), ctx->alignment), SEEK_SET) != 0) {
GGML_LOG_ERROR("%s: failed to seek to beginning of data section\n", __func__); GGML_LOG_ERROR("%s: failed to seek to beginning of data section\n", __func__);
gguf_free(ctx); gguf_free(ctx);
return nullptr; return nullptr;
} }
// store the current file offset - this is where the data section starts // store the current file offset - this is where the data section starts
ctx->offset = ftell(file); ctx->offset = gguf_ftell(file);
// compute the total size of the data section, taking into account the alignment // compute the total size of the data section, taking into account the alignment
{ {