update ceph source to reef 18.1.2

[ceph.git] / ceph / src / jaegertracing / opentelemetry-cpp / third_party / prometheus-cpp / 3rdparty / civetweb / src / third_party / duktape-1.5.2 / examples / eventloop / fileio.c

diff --git a/ceph/src/jaegertracing/opentelemetry-cpp/third_party/prometheus-cpp/3rdparty/civetweb/src/third_party/duktape-1.5.2/examples/eventloop/fileio.c b/ceph/src/jaegertracing/opentelemetry-cpp/third_party/prometheus-cpp/3rdparty/civetweb/src/third_party/duktape-1.5.2/examples/eventloop/fileio.c
new file mode 100644 (file)
index 0000000..df94cd4
--- /dev/null
+++ b/ceph/src/jaegertracing/opentelemetry-cpp/third_party/prometheus-cpp/3rdparty/civetweb/src/third_party/duktape-1.5.2/examples/eventloop/fileio.c
@@ -0,0 +1,69 @@
+/*
+ *  File I/O binding example.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "duktape.h"
+
+static int fileio_readfile(duk_context *ctx) {
+       const char *filename = duk_to_string(ctx, 0);
+       FILE *f = NULL;
+       long len;
+       void *buf;
+       size_t got;
+
+       if (!filename) {
+               goto error;
+       }
+
+       f = fopen(filename, "rb");
+       if (!f) {
+               goto error;
+       }
+
+       if (fseek(f, 0, SEEK_END) != 0) {
+               goto error;
+       }
+
+       len = ftell(f);
+
+       if (fseek(f, 0, SEEK_SET) != 0) {
+               goto error;
+       }
+
+       buf = duk_push_fixed_buffer(ctx, (size_t) len);
+
+       got = fread(buf, 1, len, f);
+       if (got != (size_t) len) {
+               goto error;
+       }
+
+       fclose(f);
+       f = NULL;
+
+       return 1;
+
+ error:
+       if (f) {
+               fclose(f);
+       }
+
+       return DUK_RET_ERROR;
+}
+
+static duk_function_list_entry fileio_funcs[] = {
+       { "readfile", fileio_readfile, 1 },
+       { NULL, NULL, 0 }
+};
+
+void fileio_register(duk_context *ctx) {
+       /* Set global 'FileIo'. */
+       duk_push_global_object(ctx);
+       duk_push_object(ctx);
+       duk_put_function_list(ctx, -1, fileio_funcs);
+       duk_put_prop_string(ctx, -2, "FileIo");
+       duk_pop(ctx);
+}