wehub-resource-sync
223 lines
8.5 KiB
C
223 lines
8.5 KiB
C
/*
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This file contains utilities shared between the different training scripts.
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In particular, we define a series of macros xxxCheck that call the corresponding
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C standard library function and check its return code. If an error was reported,
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the program prints some debug information and exits.
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*/
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#ifndef UTILS_H
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#define UTILS_H
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#include <unistd.h>
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/stat.h>
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// implementation of dirent for Windows is in dev/unistd.h
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#ifndef _WIN32
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#include <dirent.h>
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#include <arpa/inet.h>
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#endif
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// ----------------------------------------------------------------------------
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// fread convenience utils, with nice handling of error checking using macros
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// simple replace fopen, fread, fclose, fseek
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// with fopenCheck, freadCheck, fcloseCheck, fseekCheck
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extern inline FILE *fopen_check(const char *path, const char *mode, const char *file, int line) {
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FILE *fp = fopen(path, mode);
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if (fp == NULL) {
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fprintf(stderr, "Error: Failed to open file '%s' at %s:%d\n", path, file, line);
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fprintf(stderr, "Error details:\n");
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fprintf(stderr, " File: %s\n", file);
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fprintf(stderr, " Line: %d\n", line);
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fprintf(stderr, " Path: %s\n", path);
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fprintf(stderr, " Mode: %s\n", mode);
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fprintf(stderr, "---> HINT 1: dataset files/code have moved to dev/data recently (May 20, 2024). You may have to mv them from the legacy data/ dir to dev/data/(dataset), or re-run the data preprocessing script. Refer back to the main README\n");
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fprintf(stderr, "---> HINT 2: possibly try to re-run `python train_gpt2.py`\n");
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exit(EXIT_FAILURE);
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}
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return fp;
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}
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#define fopenCheck(path, mode) fopen_check(path, mode, __FILE__, __LINE__)
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extern inline void fread_check(void *ptr, size_t size, size_t nmemb, FILE *stream, const char *file, int line) {
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size_t result = fread(ptr, size, nmemb, stream);
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if (result != nmemb) {
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if (feof(stream)) {
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fprintf(stderr, "Error: Unexpected end of file at %s:%d\n", file, line);
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} else if (ferror(stream)) {
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fprintf(stderr, "Error: File read error at %s:%d\n", file, line);
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} else {
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fprintf(stderr, "Error: Partial read at %s:%d. Expected %zu elements, read %zu\n",
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file, line, nmemb, result);
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}
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fprintf(stderr, "Error details:\n");
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fprintf(stderr, " File: %s\n", file);
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fprintf(stderr, " Line: %d\n", line);
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fprintf(stderr, " Expected elements: %zu\n", nmemb);
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fprintf(stderr, " Read elements: %zu\n", result);
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exit(EXIT_FAILURE);
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}
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}
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#define freadCheck(ptr, size, nmemb, stream) fread_check(ptr, size, nmemb, stream, __FILE__, __LINE__)
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extern inline void fclose_check(FILE *fp, const char *file, int line) {
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if (fclose(fp) != 0) {
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fprintf(stderr, "Error: Failed to close file at %s:%d\n", file, line);
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fprintf(stderr, "Error details:\n");
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fprintf(stderr, " File: %s\n", file);
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fprintf(stderr, " Line: %d\n", line);
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exit(EXIT_FAILURE);
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}
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}
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#define fcloseCheck(fp) fclose_check(fp, __FILE__, __LINE__)
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extern inline void sclose_check(int sockfd, const char *file, int line) {
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if (close(sockfd) != 0) {
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fprintf(stderr, "Error: Failed to close socket at %s:%d\n", file, line);
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fprintf(stderr, "Error details:\n");
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fprintf(stderr, " File: %s\n", file);
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fprintf(stderr, " Line: %d\n", line);
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exit(EXIT_FAILURE);
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}
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}
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#define scloseCheck(sockfd) sclose_check(sockfd, __FILE__, __LINE__)
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#ifdef _WIN32
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extern inline void closesocket_check(int sockfd, const char *file, int line) {
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if (closesocket(sockfd) != 0) {
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fprintf(stderr, "Error: Failed to close socket at %s:%d\n", file, line);
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fprintf(stderr, "Error details:\n");
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fprintf(stderr, " File: %s\n", file);
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fprintf(stderr, " Line: %d\n", line);
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exit(EXIT_FAILURE);
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}
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}
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#define closesocketCheck(sockfd) closesocket_check(sockfd, __FILE__, __LINE__)
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#endif
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extern inline void fseek_check(FILE *fp, long off, int whence, const char *file, int line) {
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if (fseek(fp, off, whence) != 0) {
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fprintf(stderr, "Error: Failed to seek in file at %s:%d\n", file, line);
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fprintf(stderr, "Error details:\n");
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fprintf(stderr, " Offset: %ld\n", off);
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fprintf(stderr, " Whence: %d\n", whence);
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fprintf(stderr, " File: %s\n", file);
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fprintf(stderr, " Line: %d\n", line);
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exit(EXIT_FAILURE);
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}
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}
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#define fseekCheck(fp, off, whence) fseek_check(fp, off, whence, __FILE__, __LINE__)
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extern inline void fwrite_check(void *ptr, size_t size, size_t nmemb, FILE *stream, const char *file, int line) {
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size_t result = fwrite(ptr, size, nmemb, stream);
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if (result != nmemb) {
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if (feof(stream)) {
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fprintf(stderr, "Error: Unexpected end of file at %s:%d\n", file, line);
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} else if (ferror(stream)) {
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fprintf(stderr, "Error: File write error at %s:%d\n", file, line);
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} else {
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fprintf(stderr, "Error: Partial write at %s:%d. Expected %zu elements, wrote %zu\n",
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file, line, nmemb, result);
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}
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fprintf(stderr, "Error details:\n");
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fprintf(stderr, " File: %s\n", file);
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fprintf(stderr, " Line: %d\n", line);
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fprintf(stderr, " Expected elements: %zu\n", nmemb);
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fprintf(stderr, " Written elements: %zu\n", result);
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exit(EXIT_FAILURE);
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}
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}
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#define fwriteCheck(ptr, size, nmemb, stream) fwrite_check(ptr, size, nmemb, stream, __FILE__, __LINE__)
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// ----------------------------------------------------------------------------
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// malloc error-handling wrapper util
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extern inline void *malloc_check(size_t size, const char *file, int line) {
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void *ptr = malloc(size);
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if (ptr == NULL) {
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fprintf(stderr, "Error: Memory allocation failed at %s:%d\n", file, line);
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fprintf(stderr, "Error details:\n");
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fprintf(stderr, " File: %s\n", file);
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fprintf(stderr, " Line: %d\n", line);
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fprintf(stderr, " Size: %zu bytes\n", size);
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exit(EXIT_FAILURE);
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}
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return ptr;
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}
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#define mallocCheck(size) malloc_check(size, __FILE__, __LINE__)
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// ----------------------------------------------------------------------------
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// check that all tokens are within range
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extern inline void token_check(const int* tokens, int token_count, int vocab_size, const char *file, int line) {
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for(int i = 0; i < token_count; i++) {
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if(!(0 <= tokens[i] && tokens[i] < vocab_size)) {
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fprintf(stderr, "Error: Token out of vocabulary at %s:%d\n", file, line);
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fprintf(stderr, "Error details:\n");
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fprintf(stderr, " File: %s\n", file);
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fprintf(stderr, " Line: %d\n", line);
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fprintf(stderr, " Token: %d\n", tokens[i]);
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fprintf(stderr, " Position: %d\n", i);
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fprintf(stderr, " Vocab: %d\n", vocab_size);
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exit(EXIT_FAILURE);
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}
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}
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}
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#define tokenCheck(tokens, count, vocab) token_check(tokens, count, vocab, __FILE__, __LINE__)
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// ----------------------------------------------------------------------------
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// I/O ops
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extern inline void create_dir_if_not_exists(const char *dir) {
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if (dir == NULL) { return; }
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struct stat st = {0};
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if (stat(dir, &st) == -1) {
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if (mkdir(dir, 0700) == -1) {
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printf("ERROR: could not create directory: %s\n", dir);
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exit(EXIT_FAILURE);
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}
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printf("created directory: %s\n", dir);
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}
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}
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extern inline int find_max_step(const char* output_log_dir) {
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// find the DONE file in the log dir with highest step count
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if (output_log_dir == NULL) { return -1; }
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DIR* dir;
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struct dirent* entry;
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int max_step = -1;
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dir = opendir(output_log_dir);
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if (dir == NULL) { return -1; }
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while ((entry = readdir(dir)) != NULL) {
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if (strncmp(entry->d_name, "DONE_", 5) == 0) {
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int step = atoi(entry->d_name + 5);
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if (step > max_step) {
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max_step = step;
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}
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}
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}
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closedir(dir);
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return max_step;
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}
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extern inline int ends_with_bin(const char* str) {
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// checks if str ends with ".bin". could be generalized in the future.
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if (str == NULL) { return 0; }
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size_t len = strlen(str);
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const char* suffix = ".bin";
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size_t suffix_len = strlen(suffix);
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if (len < suffix_len) { return 0; }
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int suffix_matches = strncmp(str + len - suffix_len, suffix, suffix_len) == 0;
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return suffix_matches;
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}
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#endif |