Patch to allow mingw32 compilation

src/CMakeLists.txt

@@ -4,6 +4,29 @@ MESSAGE(STATUS "CMAKE_SYSTEM_NAME is ${CMAKE_SYSTEM_NAME}")
 
 INCLUDE_DIRECTORIES(../include/)
 
+INCLUDE(CheckCSourceCompiles)
+
+MACRO (CHECK_STRUCT_MEMBER _STRUCT _MEMBER _HEADER _RESULT)
+   SET(_INCLUDE_FILES)
+   FOREACH (it ${_HEADER})
+      SET(_INCLUDE_FILES "${_INCLUDE_FILES}#include <${it}>\n")
+   ENDFOREACH (it)
+
+   SET(_CHECK_STRUCT_MEMBER_SOURCE_CODE "
+${_INCLUDE_FILES}
+int main()
+{
+   static ${_STRUCT} tmp;
+   if (sizeof(tmp.${_MEMBER}))
+      return 0;
+  return 0;
+}
+")
+   CHECK_C_SOURCE_COMPILES("${_CHECK_STRUCT_MEMBER_SOURCE_CODE}" ${_RESULT})
+
+ENDMACRO (CHECK_STRUCT_MEMBER)
+
+
 ## linux
 IF(CMAKE_SYSTEM_NAME STREQUAL "Linux")
   SET(SIGAR_SRC os/linux/linux_sigar.c)
@@ -60,6 +83,8 @@ IF(WIN32)
   ADD_DEFINITIONS(-DSIGAR_SHARED)
   SET(SIGAR_SRC os/win32/peb.c os/win32/win32_sigar.c)
   INCLUDE_DIRECTORIES(os/win32)
+  CHECK_STRUCT_MEMBER(MIB_IPADDRROW wType "windows.h;iphlpapi.h" wType_in_MIB_IPADDRROW)
+  add_definitions(-DHAVE_MIB_IPADDRROW_WTYPE=${wType_in_MIB_IPADDRROW})
 ENDIF(WIN32)
 
 SET(SIGAR_SRC ${SIGAR_SRC}

src/os/win32/sigar_os.h

@@ -19,11 +19,15 @@
 #ifndef SIGAR_OS_H
 #define SIGAR_OS_H
 
+#ifdef MSVC
 #if _MSC_VER <= 1200
 #define SIGAR_USING_MSC6 /* Visual Studio version 6 */
 #endif
+#else
+/* Cross compiling */
+#define _WIN32_WINNT 0x0501
+#endif
 
-#define WIN32_LEAN_AND_MEAN
 #include <windows.h>
 #include <winreg.h>
 #include <winperf.h>
@@ -38,7 +42,22 @@
 
 #include "sigar_util.h"
 
+#ifdef MSVC
 #  define INT64_C(val) val##i64
+#  define SIGAR_DLLFUNC(api, name) \
+    struct { \
+         const char *name; \
+         ##api##_##name func; \
+    } ##name
+#else
+/* The GCC compiler doesn't require/accept the ## prefix */
+#  define INT64_C(val) val##L
+#  define SIGAR_DLLFUNC(api, name)		\
+    struct { \
+         const char *name; \
+         api##_##name func; \
+    } name
+#endif
 
 /* see apr/include/arch/win32/atime.h */
 #define EPOCH_DELTA INT64_C(11644473600000000)
@@ -457,12 +476,6 @@ typedef BOOL (CALLBACK *mpr_get_net_connection)(LPCTSTR,
                                                 LPTSTR,
                                                 LPDWORD);
 
-#define SIGAR_DLLFUNC(api, name) \
-    struct { \
-         const char *name; \
-         ##api##_##name func; \
-    } ##name
-
 typedef struct {
     sigar_dll_handle_t handle;
 

src/os/win32/win32_sigar.c

@@ -23,6 +23,7 @@
 #include "sigar_util.h"
 #include "sigar_format.h"
 #include <shellapi.h>
+#include <iphlpapi.h>
 
 #define USING_WIDE_S(s) (s)->using_wide
 #define USING_WIDE()    USING_WIDE_S(sigar)
@@ -124,6 +125,9 @@ typedef enum {
 #define MS_LOOPBACK_ADAPTER "Microsoft Loopback Adapter"
 #define NETIF_LA "la"
 
+static int get_proc_info(sigar_t *sigar, sigar_pid_t pid);
+static int netif_hash(char *s);
+
 sigar_uint64_t sigar_FileTimeToTime(FILETIME *ft)
 {
     sigar_uint64_t time;
@@ -374,6 +378,7 @@ static sigar_mpr_t sigar_mpr = {
     { NULL, NULL }
 };
 
+#ifdef MSVC
 #define DLLMOD_COPY(name) \
     memcpy(&(sigar->##name), &sigar_##name, sizeof(sigar_##name))
 
@@ -382,6 +387,18 @@ static sigar_mpr_t sigar_mpr = {
 
 #define DLLMOD_FREE(name) \
     sigar_dllmod_free((sigar_dll_module_t *)&(sigar->##name))
+#else
+/* The GCC compiler doesn't require/accept the ## prefix */
+#define DLLMOD_COPY(name) \
+    memcpy(&(sigar->name), &sigar_##name, sizeof(sigar_##name))
+
+#define DLLMOD_INIT(name, all) \
+    sigar_dllmod_init(sigar, (sigar_dll_module_t *)&(sigar->name), all)
+
+#define DLLMOD_FREE(name) \
+    sigar_dllmod_free((sigar_dll_module_t *)&(sigar->name))
+#endif
+
 
 static void sigar_dllmod_free(sigar_dll_module_t *module)
 {
@@ -1470,7 +1487,9 @@ static int sigar_remote_proc_args_get(sigar_t *sigar, sigar_pid_t pid,
     }
 
     /* likely we are 32-bit, pid process is 64-bit */
+#ifdef MSVC
     status = sigar_proc_args_wmi_get(sigar, pid, procargs);
+#endif
     if (status == ERROR_NOT_FOUND) {
         status = SIGAR_NO_SUCH_PROCESS;
     }
@@ -1507,7 +1526,7 @@ static int sigar_proc_env_parse(UCHAR *ptr, sigar_proc_env_t *procenv,
             break; /*XXX*/
         }
 
-        klen = val - ptr;
+        klen = val - (char*)ptr;
         SIGAR_SSTRCPY(key, ptr);
         key[klen] = '\0';
         ++val;
@@ -1640,6 +1659,7 @@ SIGAR_DECLARE(int) sigar_proc_exe_get(sigar_t *sigar, sigar_pid_t pid,
     }
 
     status = sigar_proc_exe_peb_get(sigar, proc, procexe);
+#ifdef MSVC
     if (procexe->name[0] == '\0') {
         /* likely we are 32-bit, pid process is 64-bit */
         /* procexe->cwd[0] = XXX where else can we try? */
@@ -1648,7 +1668,7 @@ SIGAR_DECLARE(int) sigar_proc_exe_get(sigar_t *sigar, sigar_pid_t pid,
             status = SIGAR_NO_SUCH_PROCESS;
         }
     }
-
+#endif
     if (procexe->cwd[0] != '\0') {
         /* strip trailing '\' */
         int len = strlen(procexe->cwd);
@@ -2394,10 +2414,10 @@ static int sigar_get_netif_ipaddr(sigar_t *sigar,
             MIB_IPADDRROW *row = &mib->table[i];
             short type;
 
-#ifdef SIGAR_USING_MSC6
-            type = row->unused2;
-#else
+#if HAVE_MIB_IPADDRROW_WTYPE
             type = row->wType;
+#else
+            type = row->unused2;
 #endif
             if (!(type & MIB_IPADDR_PRIMARY)) {
                 continue;

tests/t_sigar_fs.c

@@ -39,7 +39,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <errno.h>
-#if defined(_WIN32)
+#if defined(MSVC)
 #include <WinError.h>
 #endif
 
@@ -85,7 +85,7 @@ TEST(test_sigar_file_system_list_get) {
 		} else {
 			switch (ret) {
 				/* track the expected error code */
-#if defined(_WIN32)
+#if defined(MSVC)
 			case ERROR_NOT_READY:
 				break;
 #endif

tests/t_sigar_proc.c

@@ -39,7 +39,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <errno.h>
-#if defined(_WIN32)
+#if defined(MSVC)
 #include <WinError.h>
 #endif
 
@@ -127,7 +127,7 @@ TEST(test_sigar_proc_list_get) {
 			switch (ret) {
 			case EPERM:
 			case ESRCH:
-#if (defined(_WIN32))
+#if (defined(MSVC))
 			/* OpenProcess() may return ERROR_ACCESS_DENIED */
 			case ERROR_ACCESS_DENIED:
 #endif