Diff: c-utility/src/xlogging.c

Revision:

0:f7f1f0d76dd6

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/c-utility/src/xlogging.c	Thu Aug 23 06:52:14 2018 +0000
@@ -0,0 +1,137 @@
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+#include "azure_c_shared_utility/xlogging.h"
+#include "azure_c_shared_utility/consolelogger.h"
+
+#ifndef NO_LOGGING
+
+
+#ifdef WINCE
+#include <stdarg.h>
+
+void consolelogger_log(LOG_CATEGORY log_category, const char* file, const char* func, int line, unsigned int options, const char* format, ...)
+{
+    va_list args;
+    va_start(args, format);
+
+    time_t t = time(NULL);
+
+    switch (log_category)
+    {
+    case AZ_LOG_INFO:
+        (void)printf("Info: ");
+        break;
+    case AZ_LOG_ERROR:
+        (void)printf("Error: Time:%.24s File:%s Func:%s Line:%d ", ctime(&t), file, func, line);
+        break;
+    default:
+        break;
+    }
+
+    (void)vprintf(format, args);
+    va_end(args);
+
+    (void)log_category;
+    if (options & LOG_LINE)
+    {
+        (void)printf("\r\n");
+    }
+}
+#endif
+
+LOGGER_LOG global_log_function = consolelogger_log;
+
+void xlogging_set_log_function(LOGGER_LOG log_function)
+{
+    global_log_function = log_function;
+}
+
+LOGGER_LOG xlogging_get_log_function(void)
+{
+    return global_log_function;
+}
+
+#if (defined(_MSC_VER)) && (!(defined WINCE))
+
+LOGGER_LOG_GETLASTERROR global_log_function_GetLastError = consolelogger_log_with_GetLastError;
+
+void xlogging_set_log_function_GetLastError(LOGGER_LOG_GETLASTERROR log_function_GetLastError)
+{
+    global_log_function_GetLastError = log_function_GetLastError;
+}
+
+LOGGER_LOG_GETLASTERROR xlogging_get_log_function_GetLastError(void)
+{
+    return global_log_function_GetLastError;
+}
+#endif
+
+/* Print up to 16 bytes per line. */
+#define LINE_SIZE 16
+
+/* Return the printable char for the provided value. */
+#define PRINTABLE(c)         ((c >= ' ') && (c <= '~')) ? (char)c : '.'
+
+/* Convert the lower nibble of the provided byte to a hexadecimal printable char. */
+#define HEX_STR(c)           (((c) & 0xF) < 0xA) ? (char)(((c) & 0xF) + '0') : (char)(((c) & 0xF) - 0xA + 'A')
+
+void LogBinary(const char* comment, const void* data, size_t size)
+{
+    char charBuf[LINE_SIZE + 1];
+    char hexBuf[LINE_SIZE * 3 + 1];
+    size_t countbuf = 0;
+    size_t i = 0;
+    const unsigned char* bufAsChar = (const unsigned char*)data;
+    const unsigned char* startPos = bufAsChar;
+
+    LOG(AZ_LOG_TRACE, LOG_LINE, "%s     %lu bytes", comment, size);
+
+    /* Print the whole buffer. */
+    for (i = 0; i < size; i++)
+    {
+        /* Store the printable value of the char in the charBuf to print. */
+        charBuf[countbuf] = PRINTABLE(*bufAsChar);
+
+        /* Convert the high nibble to a printable hexadecimal value. */
+        hexBuf[countbuf * 3] = HEX_STR(*bufAsChar >> 4);
+
+        /* Convert the low nibble to a printable hexadecimal value. */
+        hexBuf[countbuf * 3 + 1] = HEX_STR(*bufAsChar);
+
+        hexBuf[countbuf * 3 + 2] = ' ';
+
+        countbuf++;
+        bufAsChar++;
+        /* If the line is full, print it to start another one. */
+        if (countbuf == LINE_SIZE)
+        {
+            charBuf[countbuf] = '\0';
+            hexBuf[countbuf * 3] = '\0';
+            LOG(AZ_LOG_TRACE, LOG_LINE, "%p: %s    %s", startPos, hexBuf, charBuf);
+            countbuf = 0;
+            startPos = bufAsChar;
+        }
+    }
+
+    /* If the last line does not fit the line size. */
+    if (countbuf > 0)
+    {
+        /* Close the charBuf string. */
+        charBuf[countbuf] = '\0';
+
+        /* Fill the hexBuf with spaces to keep the charBuf alignment. */
+        while ((countbuf++) < LINE_SIZE - 1)
+        {
+            hexBuf[countbuf * 3] = ' ';
+            hexBuf[countbuf * 3 + 1] = ' ';
+            hexBuf[countbuf * 3 + 2] = ' ';
+        }
+        hexBuf[countbuf * 3] = '\0';
+
+        /* Print the last line. */
+        LOG(AZ_LOG_TRACE, LOG_LINE, "%p: %s    %s", startPos, hexBuf, charBuf);
+    }
+}
+
+#endif