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/*
*
* Copyright 2014, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "src/core/surface/event_string.h"
#include <stdio.h>
#include <grpc/support/string.h>
#include <grpc/byte_buffer.h>
static size_t addhdr(char *p, grpc_event *ev) {
return sprintf(p, "tag:%p call:%p", ev->tag, (void *)ev->call);
}
static const char *errstr(grpc_op_error err) {
switch (err) {
case GRPC_OP_OK:
return "OK";
case GRPC_OP_ERROR:
return "ERROR";
}
return "UNKNOWN_UNKNOWN";
}
static size_t adderr(char *p, grpc_op_error err) {
return sprintf(p, " err=%s", errstr(err));
}
char *grpc_event_string(grpc_event *ev) {
char buffer[1024];
char *p = buffer;
if (ev == NULL) return gpr_strdup("null");
switch (ev->type) {
case GRPC_QUEUE_SHUTDOWN:
p += sprintf(p, "QUEUE_SHUTDOWN");
break;
case GRPC_READ:
p += sprintf(p, "READ: ");
p += addhdr(p, ev);
if (ev->data.read) {
p += sprintf(p, " %d bytes",
(int)grpc_byte_buffer_length(ev->data.read));
} else {
p += sprintf(p, " end-of-stream");
}
break;
case GRPC_INVOKE_ACCEPTED:
p += sprintf(p, "INVOKE_ACCEPTED: ");
p += addhdr(p, ev);
p += adderr(p, ev->data.invoke_accepted);
break;
case GRPC_WRITE_ACCEPTED:
p += sprintf(p, "WRITE_ACCEPTED: ");
p += addhdr(p, ev);
p += adderr(p, ev->data.write_accepted);
break;
case GRPC_FINISH_ACCEPTED:
p += sprintf(p, "FINISH_ACCEPTED: ");
p += addhdr(p, ev);
p += adderr(p, ev->data.write_accepted);
break;
case GRPC_CLIENT_METADATA_READ:
p += sprintf(p, "CLIENT_METADATA_READ: ");
p += addhdr(p, ev);
p += sprintf(p, " %d elements", (int)ev->data.client_metadata_read.count);
break;
case GRPC_FINISHED:
p += sprintf(p, "FINISHED: ");
p += addhdr(p, ev);
p += sprintf(p, " status_code=%d details='%s'", ev->data.finished.code,
ev->data.finished.details);
break;
case GRPC_SERVER_RPC_NEW:
p += sprintf(p, "SERVER_RPC_NEW: ");
p += addhdr(p, ev);
p += sprintf(p, " method='%s' host='%s' %d metadata elements",
ev->data.server_rpc_new.method, ev->data.server_rpc_new.host,
(int)ev->data.server_rpc_new.metadata_count);
break;
case GRPC_COMPLETION_DO_NOT_USE:
p += sprintf(p, "DO_NOT_USE (this is a bug)");
p += addhdr(p, ev);
break;
}
return gpr_strdup(buffer);
}
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