[Feature][T8TSK-342] modem log , 8k write to file
Only Configure: No
Affected branch: master
Affected module: Log
Is it affected on both ZXIC and MTK: MTK
Self-test: Yes
Doc Update: No
Change-Id: Ib8bb057eac228c63908964c32129cfd032ae0697
diff --git a/common_src/lib/libdlta/LICENSE b/common_src/lib/libdlta/LICENSE
new file mode 100755
index 0000000..605b7ea
--- /dev/null
+++ b/common_src/lib/libdlta/LICENSE
@@ -0,0 +1,31 @@
+Copyright Statement:
+
+This software/firmware and related documentation ("MobileTek Software") are
+protected under relevant copyright laws. The information contained herein is
+confidential and proprietary to MobileTek Inc. and/or its licensors. Without
+the prior written permission of MobileTek inc. and/or its licensors, any
+reproduction, modification, use or disclosure of MobileTek Software, and
+information contained herein, in whole or in part, shall be strictly
+prohibited.
+
+MobileTek Inc. (C) 2015. All rights reserved.
+
+BY OPENING THIS FILE, RECEIVER HEREBY UNEQUIVOCALLY ACKNOWLEDGES AND AGREES
+THAT THE SOFTWARE/FIRMWARE AND ITS DOCUMENTATIONS ("MobileTek SOFTWARE")
+RECEIVED FROM MobileTek AND/OR ITS REPRESENTATIVES ARE PROVIDED TO RECEIVER
+ON AN "AS-IS" BASIS ONLY. MobileTek EXPRESSLY DISCLAIMS ANY AND ALL
+WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
+WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
+NONINFRINGEMENT. NEITHER DOES MobileTek PROVIDE ANY WARRANTY WHATSOEVER WITH
+RESPECT TO THE SOFTWARE OF ANY THIRD PARTY WHICH MAY BE USED BY,
+INCORPORATED IN, OR SUPPLIED WITH THE MobileTek SOFTWARE, AND RECEIVER AGREES
+TO LOOK ONLY TO SUCH THIRD PARTY FOR ANY WARRANTY CLAIM RELATING THERETO.
+RECEIVER EXPRESSLY ACKNOWLEDGES THAT IT IS RECEIVER'S SOLE RESPONSIBILITY TO
+OBTAIN FROM ANY THIRD PARTY ALL PROPER LICENSES CONTAINED IN MobileTek
+SOFTWARE. MobileTek SHALL ALSO NOT BE RESPONSIBLE FOR ANY MobileTek SOFTWARE
+RELEASES MADE TO RECEIVER'S SPECIFICATION OR TO CONFORM TO A PARTICULAR
+STANDARD OR OPEN FORUM. RECEIVER'S SOLE AND EXCLUSIVE REMEDY AND MobileTek'S
+ENTIRE AND CUMULATIVE LIABILITY WITH RESPECT TO THE MobileTek SOFTWARE
+RELEASED HEREUNDER WILL BE, AT MobileTek'S OPTION, TO REVISE OR REPLACE THE
+MobileTek SOFTWARE AT ISSUE, OR REFUND ANY SOFTWARE LICENSE FEES OR SERVICE
+CHARGE PAID BY RECEIVER TO MobileTek FOR SUCH MobileTek SOFTWARE AT ISSUE.
diff --git a/common_src/lib/libdlta/Makefile b/common_src/lib/libdlta/Makefile
new file mode 100644
index 0000000..758c213
--- /dev/null
+++ b/common_src/lib/libdlta/Makefile
@@ -0,0 +1,21 @@
+TARGET := libdlta.so
+SOURCES := libdlta.c
+OBJECTS := $(SOURCES:.c=.o)
+
+GET_LOCAL_DIR = $(patsubst %/,%,$(dir $(lastword $(MAKEFILE_LIST))))
+
+.PHONY: all clean install
+
+all: $(TARGET)
+
+$(TARGET): $(OBJECTS)
+ ${CC} ${CFLAGS} -shared -fPIC -o ${TARGET} ${SOURCES}
+
+clean:
+ $(RM) $(OBJECTS) $(TARGET)
+
+install: $(TARGET)
+ install -d ${DESTDIR}${LIBDIR}
+ install -d ${DESTDIR}${INCDIR}
+ install -m 755 ${TARGET} $(DESTDIR)${LIBDIR}/${TARGET}
+ install -m 444 *.h $(DESTDIR)${INCDIR}/
diff --git a/common_src/lib/libdlta/libdlta.c b/common_src/lib/libdlta/libdlta.c
new file mode 100755
index 0000000..6878f89
--- /dev/null
+++ b/common_src/lib/libdlta/libdlta.c
@@ -0,0 +1,137 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <errno.h>
+
+
+#define MAX_LOG_FILES 9
+#define LOG_BUFFER_SIZE 8192 // 8KB
+#define MAX_BUFFER_SIZE (16*1024)
+static FILE *current_log_file = NULL;
+static char log_buffer[LOG_BUFFER_SIZE];
+static int log_buffer_index = 0;
+static char current_header[8192];
+static int current_header_len = 0;
+
+
+#define LOG_PATH "/var/log/mtklog/mdlog2/"
+
+void libdlta_init(const char *name, const char *desc)
+{
+
+ memset(log_buffer, 0, LOG_BUFFER_SIZE);
+ log_buffer_index = 0;
+ memset(current_header, 0, sizeof(current_header));
+ current_header_len = 0;
+ int result = -1;
+ struct stat st = {0};
+ if(stat(LOG_PATH, &st) == -1)
+ {
+ result = system("mkdir -p " LOG_PATH );
+ if(result == 0)
+ {
+ printf("Directory created successfully.\n");
+ }
+ else
+ {
+ printf("Failed to create directory. Error code: %d\n", result);
+ }
+ }
+ return ;
+
+}
+
+
+void libdlta_deinit(void)
+{
+
+ if (current_log_file != NULL)
+ {
+ if (log_buffer_index > 0)
+ {
+ fwrite(log_buffer, 1, log_buffer_index, current_log_file);
+ }
+ fclose(current_log_file);
+ current_log_file = NULL;
+ }
+ memset(log_buffer,0, LOG_BUFFER_SIZE);
+ log_buffer_index = 0;
+ return;
+}
+
+void rotate_logs(void)
+{
+ char old_name[256];
+ char new_name[256];
+
+ snprintf(new_name, sizeof(new_name), "%smdlog_%d.muxz", LOG_PATH, MAX_LOG_FILES - 1);
+ remove(new_name);
+
+ for (int i = MAX_LOG_FILES - 1; i > 0; i--)
+ {
+ snprintf(old_name, sizeof(old_name), "%smdlog_%d.muxz", LOG_PATH, i - 1);
+ snprintf(new_name, sizeof(new_name), "%smdlog_%d.muxz", LOG_PATH, i);
+ rename(old_name, new_name);
+ }
+}
+
+void open_new_log_file(const char *header_buf, unsigned int header_len)
+{
+
+ static char buffer[MAX_BUFFER_SIZE] = {0};
+ rotate_logs();
+ current_log_file = fopen(LOG_PATH"mdlog_0.muxz", "a+");
+ if (current_log_file == NULL)
+ {
+ perror("Failed to open new log file");
+ return;
+ }
+
+ if (setvbuf(current_log_file, buffer, _IOFBF, LOG_BUFFER_SIZE) != 0)
+ {
+ perror("Failed to set buffer for log file");
+ }
+
+ fwrite(header_buf, 1, header_len, current_log_file);
+ if(header_len <= sizeof(current_header))
+ {
+ memcpy(current_header, header_buf, header_len);
+ current_header_len = header_len;
+ }
+
+}
+
+
+void libdlta_sendlog(const char *header_buf, unsigned int header_len, const char *log_buf, unsigned int log_len)
+{
+
+ if (current_log_file == NULL || header_len != current_header_len || memcmp(header_buf, current_header, header_len) != 0)
+ {
+ if (current_log_file != NULL)
+ {
+
+ libdlta_deinit();
+ }
+ open_new_log_file(header_buf, header_len);
+ }
+
+
+ if (log_len + log_buffer_index > LOG_BUFFER_SIZE)
+ {
+ fwrite(log_buffer, 1, log_buffer_index, current_log_file);
+ log_buffer_index = 0;
+ }
+
+ if (log_len < LOG_BUFFER_SIZE)
+ {
+ memcpy(log_buffer + log_buffer_index, log_buf, log_len);
+ log_buffer_index += log_len;
+ }
+ else
+ {
+ fwrite(log_buf, 1, log_len, current_log_file);
+ }
+
+}
diff --git a/common_src/lib/libdlta/libdlta.h b/common_src/lib/libdlta/libdlta.h
new file mode 100644
index 0000000..fa5456f
--- /dev/null
+++ b/common_src/lib/libdlta/libdlta.h
@@ -0,0 +1,3 @@
+void libdlta_sendlog(const char *header_buf, unsigned int header_len, const char *log_buf, unsigned int log_len);
+void libdlta_init(const char *name, const char *desc);
+void libdlta_deinit(void);