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/*
* @licence app begin@
* SPDX license identifier: MPL-2.0
*
* Copyright (C) 2011-2015, BMW AG
*
* This file is part of GENIVI Project DLT - Diagnostic Log and Trace.
*
* This Source Code Form is subject to the terms of the
* Mozilla Public License (MPL), v. 2.0.
* If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/.
*
* For further information see http://www.genivi.org/.
* @licence end@
*/
/*!
* \author Sven Hassler <sven_hassler@mentor.com>
*
* \copyright Copyright © 2011-2015 BMW AG. \n
* License MPL-2.0: Mozilla Public License version 2.0 http://mozilla.org/MPL/2.0/.
*
* \file dlt-kpi-interrupt.c
*/
#include "dlt-kpi-interrupt.h"
DltReturnValue dlt_kpi_log_interrupts(DltContext *ctx, DltLogLevelType log_level)
{
if (ctx == NULL) {
fprintf(stderr, "%s: Nullpointer parameter (NULL) !\n", __func__);
return DLT_RETURN_WRONG_PARAMETER;
}
char buffer[BUFFER_SIZE];
*buffer = '\0';
char file_buffer[BUFFER_SIZE];
char *token, *delim = " \t", *delim2 = " \t\n", *check;
int head_line = 1, first_row = 1, cpu_count = 0, column = 0, buffer_offset = 0;
DltReturnValue ret;
if ((ret = dlt_kpi_read_file("/proc/interrupts", file_buffer, BUFFER_SIZE)) < DLT_RETURN_OK) return ret;
token = strtok(file_buffer, delim);
while (token != NULL) {
if (head_line) {
if ((strlen(token) > 3) && (token[0] == 'C') && (token[1] == 'P') && (token[2] == 'U')) {
cpu_count++;
}
else if (cpu_count <= 0)
{
fprintf(stderr, "%s: Could not parse CPU count !\n", __func__);
return DLT_RETURN_ERROR;
}
else if (strcmp(token, "\n") == 0)
{
head_line = 0;
}
token = strtok(NULL, delim);
}
else {
int tokenlen = strlen(token);
if (token[tokenlen - 1] == ':') {
column = 0;
if (first_row)
first_row = 0;
else
buffer_offset += snprintf(buffer + buffer_offset, BUFFER_SIZE - buffer_offset, "\n");
}
if (column == 0) { /* IRQ number */
buffer_offset += snprintf(buffer + buffer_offset,
BUFFER_SIZE - buffer_offset,
"%.*s;",
tokenlen - 1,
token);
}
else if (column <= cpu_count)
{
long int interrupt_count = strtol(token, &check, 10);
if (*check != '\0') {
fprintf(stderr, "%s: Could not parse interrupt count for CPU !\n", __func__);
return DLT_RETURN_ERROR;
}
buffer_offset += snprintf(buffer + buffer_offset,
BUFFER_SIZE - buffer_offset,
"cpu%d:%ld;",
column - 1,
interrupt_count);
}
column++;
token = strtok(NULL, delim2);
}
}
/* synchronization message */
DLT_LOG(*ctx, log_level, DLT_STRING("IRQ"), DLT_STRING("BEG"));
DltContextData ctx_data;
if ((ret = dlt_user_log_write_start(ctx, &ctx_data, log_level)) < DLT_RETURN_OK) {
fprintf(stderr, "%s: dlt_user_log_write_start() returned error\n", __func__);
return ret;
}
if ((ret = dlt_user_log_write_string(&ctx_data, "IRQ")) < DLT_RETURN_OK) {
fprintf(stderr, "%s: dlt_user_log_write_string() returned error\n", __func__);
return ret;
}
token = strtok(buffer, "\n");
while (token != NULL) {
if (dlt_user_log_write_string(&ctx_data, token) < DLT_RETURN_OK) {
/* message buffer full, start new one */
if ((ret = dlt_user_log_write_finish(&ctx_data)) < DLT_RETURN_OK) {
fprintf(stderr, "%s: dlt_user_log_write_finish() returned error\n", __func__);
return ret;
}
if ((ret = dlt_user_log_write_start(ctx, &ctx_data, log_level)) < DLT_RETURN_OK) {
fprintf(stderr, "%s: dlt_user_log_write_start() returned error\n", __func__);
return ret;
}
if ((ret = dlt_user_log_write_string(&ctx_data, "IRQ")) < DLT_RETURN_OK) {
fprintf(stderr, "%s: dlt_user_log_write_string() returned error\n", __func__);
return ret;
}
}
else {
token = strtok(NULL, "\n");
}
}
if ((ret = dlt_user_log_write_finish(&ctx_data)) < DLT_RETURN_OK) {
fprintf(stderr, "%s: dlt_user_log_write_finish() returned error\n", __func__);
return ret;
}
/* synchronization message */
DLT_LOG(*ctx, log_level, DLT_STRING("IRQ"), DLT_STRING("END"));
return DLT_RETURN_OK;
}
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