diff options
Diffstat (limited to 'tools/node_modules/expresso/deps/jscoverage/stream.c')
-rw-r--r-- | tools/node_modules/expresso/deps/jscoverage/stream.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/tools/node_modules/expresso/deps/jscoverage/stream.c b/tools/node_modules/expresso/deps/jscoverage/stream.c new file mode 100644 index 0000000..cc6adc0 --- /dev/null +++ b/tools/node_modules/expresso/deps/jscoverage/stream.c @@ -0,0 +1,129 @@ +/* + stream.c - `Stream' object + Copyright (C) 2008 siliconforks.com + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +*/ + +#define _GNU_SOURCE + +#include <config.h> + +#include "stream.h" + +#include <stdarg.h> +#include <stdint.h> +#include <string.h> + +#include "util.h" + +Stream * Stream_new(size_t capacity) { + Stream * result = xmalloc(sizeof(Stream)); + result->length = 0; + if (capacity == 0) { + capacity = 8192; + } + result->capacity = capacity; + result->data = xmalloc(capacity); + return result; +} + +void Stream_write(Stream * stream, const void * p, size_t size) { + size_t stream_length = stream->length; + size_t stream_capacity = stream->capacity; + if (stream_capacity - stream_length < size) { + if (SIZE_MAX - size < stream_length) { + fatal("out of memory"); + } + + if (SIZE_MAX / 2 < stream_capacity) { + stream_capacity = SIZE_MAX; + } + else { + stream_capacity *= 2; + } + + size_t new_length = stream_length + size; + if (stream_capacity < new_length) { + stream_capacity = new_length; + } + + stream->data = xrealloc(stream->data, stream_capacity); + stream->capacity = stream_capacity; + memcpy(stream->data + stream_length, p, size); + stream->length = new_length; + } + else { + memcpy(stream->data + stream_length, p, size); + stream->length = stream_length + size; + } +} + +void Stream_write_string(Stream * stream, const char * s) { + Stream_write(stream, s, strlen(s)); +} + +void Stream_write_char(Stream * stream, char c) { + size_t stream_length = stream->length; + if (stream_length == stream->capacity) { + if (stream->capacity == SIZE_MAX) { + fatal("out of memory"); + } + + if (SIZE_MAX / 2 < stream->capacity) { + stream->capacity = SIZE_MAX; + } + else { + stream->capacity *= 2; + } + + stream->data = xrealloc(stream->data, stream->capacity); + } + stream->data[stream_length] = c; + stream->length = stream_length + 1; +} + +void Stream_printf(Stream * stream, const char * format, ...) { + va_list a; + va_start(a, format); + + char * s = NULL; + /* note that size does not include the NUL character */ + int size = vasprintf(&s, format, a); + if (size < 0) { + fatal("out of memory"); + } + Stream_write(stream, s, size); + free(s); + + va_end(a); +} + +void Stream_write_file_contents(Stream * stream, FILE * f) { + char buffer[8192]; + size_t bytes_read; + while ((bytes_read = fread(buffer, 1, 8192, f)) > 0) { + Stream_write(stream, buffer, bytes_read); + } +} + +void Stream_delete(Stream * stream) { + free(stream->data); + free(stream); +} + +void Stream_reset(Stream * stream) { + stream->length = 0; +} |