+/*
+ * babeltrace-log.c
+ *
+ * BabelTrace - Convert Text Log to CTF
+ *
+ * Copyright 2010, 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * Depends on glibc 2.10 for getline().
+ */
+
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/mman.h>
+#include <dirent.h>
#include <stdio.h>
+#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>
#include <errno.h>
#include <uuid/uuid.h>
#include <string.h>
+#include <endian.h>
-#define FILE_LEN (4 * 4096)
+#include <babeltrace/babeltrace.h>
+#include <babeltrace/ctf/types.h>
-int main(int argc, char **argv)
+#ifndef UUID_STR_LEN
+#define UUID_STR_LEN 37 /* With \0 */
+#endif
+
+/* Metadata format string */
+static const char metadata_fmt[] =
+"typealias integer { size = 8; align = 8; signed = false; } := uint8_t;\n"
+"typealias integer { size = 32; align = 32; signed = false; } := uint32_t;\n"
+"\n"
+"trace {\n"
+" major = %s;\n" /* major (e.g. 0) */
+" minor = %s;\n" /* minor (e.g. 1) */
+" uuid = \"%s\";\n" /* UUID */
+" byte_order = %s;\n" /* be or le */
+" packet.header := struct {\n"
+" uint32_t magic;\n"
+" uint8_t trace_uuid[16];\n"
+" };\n"
+"};\n"
+"\n"
+"stream {\n"
+" packet.context := struct {\n"
+" uint32_t content_size;\n"
+" uint32_t packet_size;\n"
+" };\n"
+"};\n"
+"\n"
+"event {\n"
+" name = string;\n"
+" fields := struct { string str; };\n"
+"};\n";
+
+int babeltrace_debug, babeltrace_verbose;
+
+static uuid_t s_uuid;
+
+static
+void print_metadata(FILE *fp)
{
- char *base, *pos;
- int fd, ret;
- off_t off;
- uuid_t uuid;
+ char uuid_str[UUID_STR_LEN];
- fd = open("dummystream", O_RDWR|O_CREAT, S_IRUSR|S_IWUSR);
- if (fd < 0) {
- perror("open");
- return -1;
- }
- off = posix_fallocate(fd, 0, FILE_LEN);
- if (off < 0) {
- printf("Error in fallocate\n");
- return -1;
- }
-#if 0
- {
- ssize_t len;
-
- off = lseek(fd, FILE_LEN - 1, SEEK_CUR);
- if (off < 0) {
- perror("lseek");
- return -1;
- }
- len = write(fd, "", 1);
- if (len < 0) {
- perror("write");
- return -1;
+ uuid_unparse(s_uuid, uuid_str);
+ fprintf(fp, metadata_fmt,
+ __stringify(BABELTRACE_VERSION_MAJOR),
+ __stringify(BABELTRACE_VERSION_MINOR),
+ uuid_str,
+ BYTE_ORDER == LITTLE_ENDIAN ? "le" : "be");
+}
+
+
+static
+void write_packet_header(struct ctf_stream_pos *pos, uuid_t uuid)
+{
+ struct ctf_stream_pos dummy;
+
+ /* magic */
+ ctf_dummy_pos(pos, &dummy);
+ ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
+ ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
+ assert(!ctf_pos_packet(&dummy));
+
+ ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
+ *(uint32_t *) ctf_get_pos_addr(pos) = 0xC1FC1FC1;
+ ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT);
+
+ /* trace_uuid */
+ ctf_dummy_pos(pos, &dummy);
+ ctf_align_pos(&dummy, sizeof(uint8_t) * CHAR_BIT);
+ ctf_move_pos(&dummy, 16 * CHAR_BIT);
+ assert(!ctf_pos_packet(&dummy));
+
+ ctf_align_pos(pos, sizeof(uint8_t) * CHAR_BIT);
+ memcpy(ctf_get_pos_addr(pos), uuid, 16);
+ ctf_move_pos(pos, 16 * CHAR_BIT);
+}
+
+static
+void write_packet_context(struct ctf_stream_pos *pos)
+{
+ struct ctf_stream_pos dummy;
+
+ /* content_size */
+ ctf_dummy_pos(pos, &dummy);
+ ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
+ ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
+ assert(!ctf_pos_packet(&dummy));
+
+ ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
+ *(uint32_t *) ctf_get_pos_addr(pos) = -1U; /* Not known yet */
+ pos->content_size_loc = (uint32_t *) ctf_get_pos_addr(pos);
+ ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT);
+
+ /* packet_size */
+ ctf_dummy_pos(pos, &dummy);
+ ctf_align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
+ ctf_move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
+ assert(!ctf_pos_packet(&dummy));
+
+ ctf_align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
+ *(uint32_t *) ctf_get_pos_addr(pos) = pos->packet_size;
+ ctf_move_pos(pos, sizeof(uint32_t) * CHAR_BIT);
+}
+
+static
+void trace_string(char *line, struct ctf_stream_pos *pos, size_t len)
+{
+ struct ctf_stream_pos dummy;
+ int attempt = 0;
+
+ printf_debug("read: %s\n", line);
+retry:
+ ctf_dummy_pos(pos, &dummy);
+ ctf_align_pos(&dummy, sizeof(uint8_t) * CHAR_BIT);
+ ctf_move_pos(&dummy, len * CHAR_BIT);
+ if (ctf_pos_packet(&dummy)) {
+ /* TODO write content size */
+ ctf_pos_pad_packet(pos);
+ write_packet_header(pos, s_uuid);
+ write_packet_context(pos);
+ if (attempt++ == 1) {
+ fprintf(stdout, "[Error] Line too large for packet size (%zukB) (discarded)\n",
+ pos->packet_size / CHAR_BIT / 1024);
+ return;
}
+ goto retry;
}
-#endif
- base = mmap(NULL, FILE_LEN, PROT_READ|PROT_WRITE,
- MAP_SHARED, fd, 0);
- if (!base) {
- perror("mmap");
- return -1;
+
+ ctf_align_pos(pos, sizeof(uint8_t) * CHAR_BIT);
+ memcpy(ctf_get_pos_addr(pos), line, len);
+ ctf_move_pos(pos, len * CHAR_BIT);
+}
+
+static
+void trace_text(FILE *input, int output)
+{
+ struct ctf_stream_pos pos;
+ ssize_t len;
+ char *line = NULL, *nl;
+ size_t linesize;
+
+ ctf_init_pos(&pos, output, O_RDWR);
+
+ write_packet_header(&pos, s_uuid);
+ write_packet_context(&pos);
+ for (;;) {
+ len = getline(&line, &linesize, input);
+ if (len < 0)
+ break;
+ nl = strrchr(line, '\n');
+ if (nl)
+ *nl = '\0';
+ trace_string(line, &pos, nl - line + 1);
}
- pos = base;
+ ctf_fini_pos(&pos);
+}
- /* magic */
- *(uint32_t *) pos = 0xC1FC1FC1;
- pos += sizeof(uint32_t);
+static void usage(FILE *fp)
+{
+ fprintf(fp, "BabelTrace Log Converter %u.%u\n",
+ BABELTRACE_VERSION_MAJOR,
+ BABELTRACE_VERSION_MINOR);
+ fprintf(fp, "\n");
+ fprintf(fp, "Convert for a text log (read from standard input) to CTF.\n");
+ fprintf(fp, "\n");
+ fprintf(fp, "usage : babeltrace-log OUTPUT\n");
+ fprintf(fp, "\n");
+ fprintf(fp, " OUTPUT Output trace path\n");
+ fprintf(fp, "\n");
+}
- /* trace_uuid */
- ret = uuid_parse("2a6422d0-6cee-11e0-8c08-cb07d7b3a564", uuid);
+int main(int argc, char **argv)
+{
+ int fd, metadata_fd, ret;
+ char *outputname;
+ DIR *dir;
+ int dir_fd;
+ FILE *metadata_fp;
+
+ if (argc < 2) {
+ usage(stdout);
+ goto error;
+ }
+ outputname = argv[1];
+
+ ret = mkdir(outputname, S_IRWXU|S_IRWXG);
if (ret) {
- printf("uuid parse error\n");
- return -1;
+ perror("mkdir");
+ goto error;
}
- memcpy(pos, uuid, 16);
- pos += 16;
- /* stream_id */
- *(uint32_t *) pos = 0;
- pos += sizeof(uint32_t);
+ dir = opendir(outputname);
+ if (!dir) {
+ perror("opendir");
+ goto error_rmdir;
+ }
+ dir_fd = dirfd(dir);
+ if (dir_fd < 0) {
+ perror("dirfd");
+ goto error_closedir;
+ }
- ret = munmap(base, FILE_LEN);
- if (ret) {
- perror("munmap");
- return -1;
+ fd = openat(dir_fd, "datastream", O_RDWR|O_CREAT,
+ S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP);
+ if (fd < 0) {
+ perror("openat");
+ goto error_closedirfd;
}
- close(fd);
- return 0;
-}
+ metadata_fd = openat(dir_fd, "metadata", O_RDWR|O_CREAT,
+ S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP);
+ if (fd < 0) {
+ perror("openat");
+ goto error_closedatastream;
+ }
+ metadata_fp = fdopen(metadata_fd, "w");
+ if (!metadata_fp) {
+ perror("fdopen");
+ goto error_closemetadatafd;
+ }
+
+ uuid_generate(s_uuid);
+ print_metadata(metadata_fp);
+ trace_text(stdin, fd);
+ close(fd);
+ exit(EXIT_SUCCESS);
+
+ /* error handling */
+error_closemetadatafd:
+ ret = close(metadata_fd);
+ if (ret)
+ perror("close");
+error_closedatastream:
+ ret = close(fd);
+ if (ret)
+ perror("close");
+error_closedirfd:
+ ret = close(dir_fd);
+ if (ret)
+ perror("close");
+error_closedir:
+ ret = closedir(dir);
+ if (ret)
+ perror("closedir");
+error_rmdir:
+ ret = rmdir(outputname);
+ if (ret)
+ perror("rmdir");
+error:
+ exit(EXIT_FAILURE);
+}
projects / babeltrace.git / blobdiff