+/*
+ * text-to-ctf.c
+ *
+ * BabelTrace - Convert Text 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 <uuid/uuid.h>
#include <string.h>
-#define FILE_LEN (4 * 4096)
+#include <babeltrace/babeltrace.h>
+#include <babeltrace/ctf/types.h>
+
+int babeltrace_debug = 0;
+
+static uuid_t s_uuid;
+
+static
+void write_packet_header(struct stream_pos *pos, uuid_t uuid)
+{
+ struct stream_pos dummy;
+
+ /* magic */
+ dummy_pos(pos, &dummy);
+ align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
+ move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
+ assert(!pos_packet(&dummy));
+
+ align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
+ *(uint32_t *) get_pos_addr(pos) = 0xC1FC1FC1;
+ move_pos(pos, sizeof(uint32_t) * CHAR_BIT);
+
+ /* trace_uuid */
+ dummy_pos(pos, &dummy);
+ align_pos(&dummy, sizeof(uint8_t) * CHAR_BIT);
+ move_pos(&dummy, 16 * CHAR_BIT);
+ assert(!pos_packet(&dummy));
+
+ align_pos(pos, sizeof(uint8_t) * CHAR_BIT);
+ memcpy(get_pos_addr(pos), uuid, 16);
+ move_pos(pos, 16 * CHAR_BIT);
+}
+
+static
+void write_packet_context(struct stream_pos *pos)
+{
+ struct stream_pos dummy;
+
+ /* content_size */
+ dummy_pos(pos, &dummy);
+ align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
+ move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
+ assert(!pos_packet(&dummy));
+
+ align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
+ *(uint32_t *) get_pos_addr(pos) = -1U; /* Not known yet */
+ pos->content_size_loc = (uint32_t *) get_pos_addr(pos);
+ move_pos(pos, sizeof(uint32_t) * CHAR_BIT);
+
+ /* packet_size */
+ dummy_pos(pos, &dummy);
+ align_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
+ move_pos(&dummy, sizeof(uint32_t) * CHAR_BIT);
+ assert(!pos_packet(&dummy));
+
+ align_pos(pos, sizeof(uint32_t) * CHAR_BIT);
+ *(uint32_t *) get_pos_addr(pos) = pos->packet_size;
+ move_pos(pos, sizeof(uint32_t) * CHAR_BIT);
+}
+
+static
+void trace_string(char *line, struct stream_pos *pos, size_t len)
+{
+ struct stream_pos dummy;
+ int attempt = 0;
+
+ printf_debug("read: %s\n", line);
+retry:
+ dummy_pos(pos, &dummy);
+ align_pos(&dummy, sizeof(uint8_t) * CHAR_BIT);
+ move_pos(&dummy, len * CHAR_BIT);
+ if (pos_packet(&dummy)) {
+ /* TODO write content size */
+ 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;
+ }
+
+ align_pos(pos, sizeof(uint8_t) * CHAR_BIT);
+ memcpy(get_pos_addr(pos), line, len);
+ move_pos(pos, len * CHAR_BIT);
+}
+
+static
+void trace_text(FILE *input, int output)
+{
+ struct stream_pos pos;
+ ssize_t len;
+ char *line = NULL, *nl;
+ size_t linesize;
+
+ init_pos(&pos, output);
+
+ 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);
+ }
+ fini_pos(&pos);
+}
int main(int argc, char **argv)
{
- char *base, *pos;
int fd, ret;
- off_t off;
- uuid_t uuid;
+ ret = unlink("dummystream");
+ if (ret < 0) {
+ perror("unlink");
+ return -1;
+ }
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;
- }
- }
-#endif
- base = mmap(NULL, FILE_LEN, PROT_READ|PROT_WRITE,
- MAP_SHARED, fd, 0);
- if (!base) {
- perror("mmap");
- return -1;
- }
- pos = base;
-
- /* magic */
- *(uint32_t *) pos = 0xC1FC1FC1;
- pos += sizeof(uint32_t);
- /* trace_uuid */
- ret = uuid_parse("2a6422d0-6cee-11e0-8c08-cb07d7b3a564", uuid);
+ ret = uuid_parse("2a6422d0-6cee-11e0-8c08-cb07d7b3a564", s_uuid);
if (ret) {
printf("uuid parse error\n");
+ close(fd);
return -1;
}
- memcpy(pos, uuid, 16);
- pos += 16;
-
- /* stream_id */
- *(uint32_t *) pos = 0;
- pos += sizeof(uint32_t);
- ret = munmap(base, FILE_LEN);
- if (ret) {
- perror("munmap");
- return -1;
- }
+ trace_text(stdin, fd);
close(fd);
return 0;
}
-
-
projects / babeltrace.git / blobdiff