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/*
*
* tel-plugin-mfld-blackbay
*
* Copyright (C) 2013 Intel Corporation. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <sys/time.h>
#include <sys/mman.h>
#include <unistd.h>
#include <fcntl.h>
#include <glib.h>
#include <log.h>
#include <util_mfld_blackbay.h>
#define MAX_READ_ATTEMPTS 4
#define MAX_WRITE_ATTEMPTS 10
/* Read data from a GIOChannel */
size_t channel_read(GIOChannel *channel, void* buf, size_t nbytes)
{
GIOStatus status;
size_t rbytes;
size_t toread = nbytes;
size_t bytes_read = 0;
unsigned int read_count = 0;
do {
rbytes = 0;
status = g_io_channel_read_chars(channel, buf, toread, &rbytes, NULL);
read_count++;
err("g_io_channel_read_chars.. status[%d] rbytes =%d read_count = %d", status, rbytes, read_count);
bytes_read += rbytes;
toread -= rbytes;
if (rbytes > 0)
buf+=rbytes;
if (toread == 0)
break;
} while (status == G_IO_STATUS_NORMAL && rbytes > 0 && read_count < MAX_READ_ATTEMPTS);
return bytes_read;
}
static void __selectsleep(int sec,int msec)
{
struct timeval tv;
tv.tv_sec=sec;
tv.tv_usec=msec;
select(0,NULL,NULL,NULL,&tv);
return;
}
/* Write data to a GIOChannel */
size_t channel_write(GIOChannel *channel, void* buf, size_t nbytes)
{
GIOStatus status;
size_t tbytes = 0;
size_t bytes_written = 0;
unsigned int retry = 0;
do {
status = g_io_channel_write_chars(channel, (const gchar*)buf, nbytes - bytes_written, &tbytes, NULL);
if (status == G_IO_STATUS_AGAIN) {
err("write failed. Retry.. status[%d] Nb attempt[%d]", status, retry);
__selectsleep(0,50);
if (retry == MAX_WRITE_ATTEMPTS)
return 0;
retry = retry + 1;
continue;
}
if (status != G_IO_STATUS_NORMAL) {
if (bytes_written != nbytes)
err("write failed. status[%d] with errno[%d]", status, errno);
return bytes_written;
}
bytes_written += tbytes;
buf += tbytes;
} while (bytes_written < nbytes);
return bytes_written;
}
void util_hex_dump(char *pad, int size, const void *data)
{
char buf[255] = {0, };
char hex[4] = {0, };
int i;
unsigned char *p;
if (size <= 0) {
msg("%sno data", pad);
return;
}
p = (unsigned char *) data;
snprintf(buf, 255, "%s%04X: ", pad, 0);
for (i = 0; i < size; i++) {
snprintf(hex, 4, "%02X ", p[i]);
strcat(buf, hex);
if ((i + 1) % 8 == 0) {
if ((i + 1) % 16 == 0) {
msg("%s", buf);
memset(buf, 0, 255);
snprintf(buf, 255, "%s%04X: ", pad, i + 1);
} else {
strcat(buf, " ");
}
}
}
msg("%s", buf);
}
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