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-rw-r--r--tools/node_modules/expresso/deps/jscoverage/stream.c129
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;
+}