diff options
Diffstat (limited to 'third_party/git/vcs-svn/line_buffer.c')
-rw-r--r-- | third_party/git/vcs-svn/line_buffer.c | 126 |
1 files changed, 0 insertions, 126 deletions
diff --git a/third_party/git/vcs-svn/line_buffer.c b/third_party/git/vcs-svn/line_buffer.c deleted file mode 100644 index e416caf8a4fc..000000000000 --- a/third_party/git/vcs-svn/line_buffer.c +++ /dev/null @@ -1,126 +0,0 @@ -/* - * Licensed under a two-clause BSD-style license. - * See LICENSE for details. - */ - -#include "git-compat-util.h" -#include "line_buffer.h" -#include "strbuf.h" - -#define COPY_BUFFER_LEN 4096 - -int buffer_init(struct line_buffer *buf, const char *filename) -{ - buf->infile = filename ? fopen(filename, "r") : stdin; - if (!buf->infile) - return -1; - return 0; -} - -int buffer_fdinit(struct line_buffer *buf, int fd) -{ - buf->infile = fdopen(fd, "r"); - if (!buf->infile) - return -1; - return 0; -} - -int buffer_tmpfile_init(struct line_buffer *buf) -{ - buf->infile = tmpfile(); - if (!buf->infile) - return -1; - return 0; -} - -int buffer_deinit(struct line_buffer *buf) -{ - int err; - if (buf->infile == stdin) - return ferror(buf->infile); - err = ferror(buf->infile); - err |= fclose(buf->infile); - return err; -} - -FILE *buffer_tmpfile_rewind(struct line_buffer *buf) -{ - rewind(buf->infile); - return buf->infile; -} - -long buffer_tmpfile_prepare_to_read(struct line_buffer *buf) -{ - long pos = ftell(buf->infile); - if (pos < 0) - return error_errno("ftell error"); - if (fseek(buf->infile, 0, SEEK_SET)) - return error_errno("seek error"); - return pos; -} - -int buffer_ferror(struct line_buffer *buf) -{ - return ferror(buf->infile); -} - -int buffer_read_char(struct line_buffer *buf) -{ - return fgetc(buf->infile); -} - -/* Read a line without trailing newline. */ -char *buffer_read_line(struct line_buffer *buf) -{ - char *end; - if (!fgets(buf->line_buffer, sizeof(buf->line_buffer), buf->infile)) - /* Error or data exhausted. */ - return NULL; - end = buf->line_buffer + strlen(buf->line_buffer); - if (end[-1] == '\n') - end[-1] = '\0'; - else if (feof(buf->infile)) - ; /* No newline at end of file. That's fine. */ - else - /* - * Line was too long. - * There is probably a saner way to deal with this, - * but for now let's return an error. - */ - return NULL; - return buf->line_buffer; -} - -size_t buffer_read_binary(struct line_buffer *buf, - struct strbuf *sb, size_t size) -{ - return strbuf_fread(sb, size, buf->infile); -} - -off_t buffer_copy_bytes(struct line_buffer *buf, off_t nbytes) -{ - char byte_buffer[COPY_BUFFER_LEN]; - off_t done = 0; - while (done < nbytes && !feof(buf->infile) && !ferror(buf->infile)) { - off_t len = nbytes - done; - size_t in = len < COPY_BUFFER_LEN ? len : COPY_BUFFER_LEN; - in = fread(byte_buffer, 1, in, buf->infile); - done += in; - fwrite(byte_buffer, 1, in, stdout); - if (ferror(stdout)) - return done + buffer_skip_bytes(buf, nbytes - done); - } - return done; -} - -off_t buffer_skip_bytes(struct line_buffer *buf, off_t nbytes) -{ - char byte_buffer[COPY_BUFFER_LEN]; - off_t done = 0; - while (done < nbytes && !feof(buf->infile) && !ferror(buf->infile)) { - off_t len = nbytes - done; - size_t in = len < COPY_BUFFER_LEN ? len : COPY_BUFFER_LEN; - done += fread(byte_buffer, 1, in, buf->infile); - } - return done; -} |