add support of Alpine Linux

CMakeLists.txt

@@ -70,6 +70,13 @@ IF (NOT DEFINED TD_CLUSTER)
     ENDIF ()
   ENDIF ()
 
+  #
+  # Get OS information and store in variable TD_OS_INFO.
+  #
+  execute_process(COMMAND chmod 777 ${TD_COMMUNITY_DIR}/packaging/tools/get_os.sh)
+  execute_process(COMMAND ${TD_COMMUNITY_DIR}/packaging/tools/get_os.sh "" OUTPUT_VARIABLE TD_OS_INFO)
+  MESSAGE(STATUS "The current os is " ${TD_OS_INFO})
+
   IF (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
     IF (${CMAKE_SIZEOF_VOID_P} MATCHES 8)
       SET(TD_LINUX_64 TRUE)
@@ -150,6 +157,13 @@ IF (NOT DEFINED TD_CLUSTER)
     ENDIF ()
     ADD_DEFINITIONS(-DLINUX)
     ADD_DEFINITIONS(-D_REENTRANT -D__USE_POSIX -D_LIBC_REENTRANT)
+    IF (${TD_OS_INFO} MATCHES "Alpine")
+      MESSAGE(STATUS "The current OS is Alpine, append extra flags")
+      SET(COMMON_FLAGS "${COMMON_FLAGS} -largp")
+      link_libraries(/usr/lib/libargp.a)
+    ELSE ()
+      ADD_DEFINITIONS(-D__USE_GNU)
+    ENDIF ()
   ELSEIF (TD_LINUX_32)
     IF (NOT TD_ARM)
       EXIT ()
@@ -160,6 +174,13 @@ IF (NOT DEFINED TD_CLUSTER)
     ADD_DEFINITIONS(-DLINUX)
     ADD_DEFINITIONS(-D_REENTRANT -D__USE_POSIX -D_LIBC_REENTRANT)
     ADD_DEFINITIONS(-DUSE_LIBICONV)
+    IF (${TD_OS_INFO} MATCHES "Alpine")
+      MESSAGE(STATUS "The current OS is Alpine, add extra flags")
+      SET(COMMON_FLAGS "${COMMON_FLAGS} -largp")
+      link_library(/usr/lib/libargp.a)
+    ELSE ()
+      ADD_DEFINITIONS(-D__USE_GNU)
+    ENDIF ()
   ELSEIF (TD_WINDOWS_64)
     SET(CMAKE_GENERATOR "NMake Makefiles" CACHE INTERNAL "" FORCE)
     SET(COMMON_FLAGS "/nologo /WX- /Oi /Oy- /Gm- /EHsc /MT /GS /Gy /fp:precise /Zc:wchar_t /Zc:forScope /Gd /errorReport:prompt /analyze-")

packaging/tools/get_os.sh

+#!/bin/bash
+#
+# This file is used to install TAOS time-series database on linux systems. The operating system 
+# is required to use systemd to manage services at boot
+
+set -e
+# set -x
+
+# -----------------------Variables definition---------------------
+OS=$(cat /etc/*-release | grep "^NAME=" | cut -d= -f2)
+len=$(echo ${#OS})
+len=$((len-2))
+retval=$(echo -ne ${OS:1:${len}} | cut -d" " -f0)
+echo -ne $retval

src/kit/shell/src/shellLinux.c

@@ -130,7 +130,11 @@ void shellParseArgument(int argc, char *argv[], struct arguments *arguments) {
   
   argp_parse(&argp, argc, argv, 0, 0, arguments);
   if (arguments->abort) {
+    #ifdef __USE_GNU
       error(10, 0, "ABORTED");
+    #else
+      abort();
+    #endif
   }
 }
 

src/kit/taosdemo/taosdemo.c

@@ -17,7 +17,10 @@
 
 #include <argp.h>
 #include <assert.h>
+#if !defined (__USE_GNU) && defined (LINUX)
+#else
 #include <error.h>
+#endif
 #include <pthread.h>
 #include <semaphore.h>
 #include <stdbool.h>
@@ -309,7 +312,13 @@ int main(int argc, char *argv[]) {
 
   argp_parse(&argp, argc, argv, 0, 0, &arguments);
 
-  if (arguments.abort) error(10, 0, "ABORTED");
+  if (arguments.abort) {
+    #ifdef __USE_GNU
+      error(10, 0, "ABORTED");
+    #else
+      abort();
+    #endif
+  }
   
   enum MODE query_mode = arguments.mode;
   char *ip_addr = arguments.host;

src/kit/taosdump/taosdump.c

@@ -15,7 +15,10 @@
 
 #include <argp.h>
 #include <assert.h>
+#if !defined (__USE_GNU) && defined (LINUX)
+#else
 #include <error.h>
+#endif
 #include <fcntl.h>
 #include <stdbool.h>
 #include <stdio.h>
@@ -335,7 +338,13 @@ int main(int argc, char *argv[]) {
      reflected in arguments. */
   argp_parse(&argp, argc, argv, 0, 0, &arguments);
 
-  if (arguments.abort) error(10, 0, "ABORTED");
+  if (arguments.abort) {
+    #ifdef __USE_GNU
+      error(10, 0, "ABORTED");
+    #else
+      abort();
+    #endif
+  }
 
   if (taosCheckParam(&arguments) < 0) {
     exit(EXIT_FAILURE);

src/os/linux/inc/os.h

@@ -229,6 +229,14 @@ void taosSetCoreDump();
 
 void taosBlockSIGPIPE();
 
+#ifndef __USE_GNU
+  typedef int(*__compar_fn_t)(const void *, const void *);
+  void  error (int, int, const char *);
+  #ifndef PTHREAD_MUTEX_RECURSIVE_NP
+    #define  PTHREAD_MUTEX_RECURSIVE_NP PTHREAD_MUTEX_RECURSIVE
+  #endif
+#endif
+
 #define BUILDIN_CLZL(val) __builtin_clzl(val)
 #define BUILDIN_CLZ(val) __builtin_clz(val)
 #define BUILDIN_CTZL(val) __builtin_ctzl(val)

src/os/linux/src/tlinux.c

@@ -234,8 +234,15 @@ void *taosProcessAlarmSignal(void *tharg) {
 
   timer_t         timerId;
   struct sigevent sevent;
+  
+  #ifndef __USE_GNU
+    sevent.sigev_notify = SIGEV_THREAD;
+    sevent.sigev_value.sival_int = syscall(__NR_gettid);
+  #else
     sevent.sigev_notify = SIGEV_THREAD_ID;
     sevent._sigev_un._tid = syscall(__NR_gettid);
+  #endif
+  
   sevent.sigev_signo = SIGALRM;
 
   if (timer_create(CLOCK_REALTIME, &sevent, &timerId) == -1) {

src/os/linux/src/tsystem.c

@@ -27,12 +27,15 @@
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/resource.h>
-#include <sys/sysctl.h>
-#include <sys/syscall.h>
 #include <string.h>
 #include <stdio.h>
 #include <stdlib.h>
+
+#ifndef __USE_GNU
 #include <linux/sysctl.h>
+#else
+#include <sys/sysctl.h>
+#endif
 
 #include "tglobalcfg.h"
 #include "tlog.h"