]> git.saurik.com Git - wxWidgets.git/blobdiff - src/unix/utilsunx.cpp
take wxString, not wxChar* in wxStandardPaths::GetLocalizedResourcesDir
[wxWidgets.git] / src / unix / utilsunx.cpp
index 02b49fdc575bae5541ff2686e99940cfb8fea8c3..2eab9e451b7fd154627b18e5978eb18156a70faa 100644 (file)
 // for compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
+#include "wx/utils.h"
+
 #ifndef WX_PRECOMP
     #include "wx/string.h"
+    #include "wx/intl.h"
+    #include "wx/log.h"
+    #include "wx/app.h"
+    #include "wx/wxcrtvararg.h"
 #endif
 
-#include "wx/intl.h"
-#include "wx/log.h"
-#include "wx/app.h"
 #include "wx/apptrait.h"
 
-#include "wx/utils.h"
 #include "wx/process.h"
 #include "wx/thread.h"
 
 #include "wx/unix/private.h"
 
 #include <pwd.h>
+#include <sys/wait.h>       // waitpid()
+
+#ifdef HAVE_SYS_SELECT_H
+#   include <sys/select.h>
+#endif
+
+#define HAS_PIPE_INPUT_STREAM (wxUSE_STREAMS && wxUSE_FILE)
 
-#if wxUSE_STREAMS
+#if HAS_PIPE_INPUT_STREAM
 
 // define this to let wxexec.cpp know that we know what we're doing
 #define _WX_USED_BY_WXEXECUTE_
 #include "../common/execcmn.cpp"
 
-#endif // wxUSE_STREAMS
+#endif // HAS_PIPE_INPUT_STREAM
 
 #if wxUSE_BASE
 
      defined(__osf__) || defined(__EMX__))
     extern "C"
     {
-        #ifdef __SUN__
+        #ifdef __EMX__
+            /* I copied this from the XFree86 diffs. AV. */
+            #define INCL_DOSPROCESS
+            #include <os2.h>
+            inline void usleep(unsigned long delay)
+            {
+                DosSleep(delay ? (delay/1000l) : 1l);
+            }
+        #else // Unix
             int usleep(unsigned int usec);
-        #else // !Sun
-            #ifdef __EMX__
-                /* I copied this from the XFree86 diffs. AV. */
-                #define INCL_DOSPROCESS
-                #include <os2.h>
-                inline void usleep(unsigned long delay)
-                {
-                    DosSleep(delay ? (delay/1000l) : 1l);
-                }
-            #else // !Sun && !EMX
-                void usleep(unsigned long usec);
-            #endif
-        #endif // Sun/EMX/Something else
+        #endif // __EMX__/Unix
     };
 
     #define HAVE_USLEEP 1
@@ -259,7 +264,8 @@ long wxMacExecute(wxChar **argv,
 long wxExecute( const wxString& command, int flags, wxProcess *process )
 {
     wxCHECK_MSG( !command.empty(), 0, wxT("can't exec empty command") );
-    wxLogDebug(wxString(wxT("Launching: ")) + command);
+
+    wxLogTrace(wxT("exec"), wxT("Executing \"%s\""), command.c_str());
 
 #if wxUSE_THREADS
     // fork() doesn't mix well with POSIX threads: on many systems the program
@@ -402,23 +408,11 @@ bool wxShutdown(wxShutdownFlags wFlags)
     return system(wxString::Format(_T("init %c"), level).mb_str()) == 0;
 }
 
-wxPowerType wxGetPowerType()
-{
-    // TODO
-    return wxPOWER_UNKNOWN;
-}
-
-wxBatteryState wxGetBatteryState()
-{
-    // TODO
-    return wxBATTERY_UNKNOWN_STATE;
-}
-
 // ----------------------------------------------------------------------------
 // wxStream classes to support IO redirection in wxExecute
 // ----------------------------------------------------------------------------
 
-#if wxUSE_STREAMS
+#if HAS_PIPE_INPUT_STREAM
 
 bool wxPipeInputStream::CanRead() const
 {
@@ -458,7 +452,7 @@ bool wxPipeInputStream::CanRead() const
     }
 }
 
-#endif // wxUSE_STREAMS
+#endif // HAS_PIPE_INPUT_STREAM
 
 // ----------------------------------------------------------------------------
 // wxExecute: the real worker function
@@ -481,7 +475,7 @@ long wxExecute(wxChar **argv, int flags, wxProcess *process)
 
     while (argv[mb_argc])
     {
-        wxWX2MBbuf mb_arg = wxConvertWX2MB(argv[mb_argc]);
+        wxWX2MBbuf mb_arg = wxSafeConvertWX2MB(argv[mb_argc]);
         mb_argv[mb_argc] = strdup(mb_arg);
         mb_argc++;
     }
@@ -642,16 +636,16 @@ long wxExecute(wxChar **argv, int flags, wxProcess *process)
 
         // prepare for IO redirection
 
-#if wxUSE_STREAMS
+#if HAS_PIPE_INPUT_STREAM
         // the input buffer bufOut is connected to stdout, this is why it is
         // called bufOut and not bufIn
         wxStreamTempInputBuffer bufOut,
                                 bufErr;
-#endif // wxUSE_STREAMS
+#endif // HAS_PIPE_INPUT_STREAM
 
         if ( process && process->IsRedirected() )
         {
-#if wxUSE_STREAMS
+#if HAS_PIPE_INPUT_STREAM
             wxOutputStream *inStream =
                 new wxFileOutputStream(pipeIn.Detach(wxPipe::Write));
 
@@ -668,7 +662,7 @@ long wxExecute(wxChar **argv, int flags, wxProcess *process)
 
             execData.bufOut = &bufOut;
             execData.bufErr = &bufErr;
-#endif // wxUSE_STREAMS
+#endif // HAS_PIPE_INPUT_STREAM
         }
 
         if ( pipeIn.IsOk() )
@@ -730,7 +724,7 @@ char *wxGetUserHome( const wxString &user )
         }
         if ((ptr = wxGetenv(wxT("USER"))) != NULL || (ptr = wxGetenv(wxT("LOGNAME"))) != NULL)
         {
-            who = getpwnam(wxConvertWX2MB(ptr));
+            who = getpwnam(wxSafeConvertWX2MB(ptr));
         }
 
         // We now make sure the the user exists!
@@ -744,13 +738,42 @@ char *wxGetUserHome( const wxString &user )
       who = getpwnam (user.mb_str());
     }
 
-    return wxConvertMB2WX(who ? who->pw_dir : 0);
+    return wxSafeConvertMB2WX(who ? who->pw_dir : 0);
 }
 
 // ----------------------------------------------------------------------------
 // network and user id routines
 // ----------------------------------------------------------------------------
 
+// private utility function which returns output of the given command, removing
+// the trailing newline
+static wxString wxGetCommandOutput(const wxString &cmd)
+{
+    FILE *f = popen(cmd.ToAscii(), "r");
+    if ( !f )
+    {
+        wxLogSysError(_T("Executing \"%s\" failed"), cmd.c_str());
+        return wxEmptyString;
+    }
+
+    wxString s;
+    char buf[256];
+    while ( !feof(f) )
+    {
+        if ( !fgets(buf, sizeof(buf), f) )
+            break;
+
+        s += wxString::FromAscii(buf);
+    }
+
+    pclose(f);
+
+    if ( !s.empty() && s.Last() == _T('\n') )
+        s.RemoveLast();
+
+    return s;
+}
+
 // retrieve either the hostname or FQDN depending on platform (caller must
 // check whether it's one or the other, this is why this function is for
 // private use only)
@@ -766,11 +789,17 @@ static bool wxGetHostNameInternal(wxChar *buf, int sz)
     bool ok = uname(&uts) != -1;
     if ( ok )
     {
-        wxStrncpy(buf, wxConvertMB2WX(uts.nodename), sz - 1);
+        wxStrncpy(buf, wxSafeConvertMB2WX(uts.nodename), sz - 1);
         buf[sz] = wxT('\0');
     }
 #elif defined(HAVE_GETHOSTNAME)
-    bool ok = gethostname(buf, sz) != -1;
+    char cbuf[sz];
+    bool ok = gethostname(cbuf, sz) != -1;
+    if ( ok )
+    {
+        wxStrncpy(buf, wxSafeConvertMB2WX(cbuf), sz - 1);
+        buf[sz] = wxT('\0');
+    }
 #else // no uname, no gethostname
     wxFAIL_MSG(wxT("don't know host name for this machine"));
 
@@ -812,7 +841,7 @@ bool wxGetFullHostName(wxChar *buf, int sz)
     {
         if ( !wxStrchr(buf, wxT('.')) )
         {
-            struct hostent *host = gethostbyname(wxConvertWX2MB(buf));
+            struct hostent *host = gethostbyname(wxSafeConvertWX2MB(buf));
             if ( !host )
             {
                 wxLogSysError(_("Cannot get the official hostname"));
@@ -822,7 +851,7 @@ bool wxGetFullHostName(wxChar *buf, int sz)
             else
             {
                 // the canonical name
-                wxStrncpy(buf, wxConvertMB2WX(host->h_name), sz);
+                wxStrncpy(buf, wxSafeConvertMB2WX(host->h_name), sz);
             }
         }
         //else: it's already a FQDN (BSD behaves this way)
@@ -838,7 +867,7 @@ bool wxGetUserId(wxChar *buf, int sz)
     *buf = wxT('\0');
     if ((who = getpwuid(getuid ())) != NULL)
     {
-        wxStrncpy (buf, wxConvertMB2WX(who->pw_name), sz - 1);
+        wxStrncpy (buf, wxSafeConvertMB2WX(who->pw_name), sz - 1);
         return true;
     }
 
@@ -847,45 +876,73 @@ bool wxGetUserId(wxChar *buf, int sz)
 
 bool wxGetUserName(wxChar *buf, int sz)
 {
+#ifdef HAVE_PW_GECOS
     struct passwd *who;
 
     *buf = wxT('\0');
     if ((who = getpwuid (getuid ())) != NULL)
     {
-        // pw_gecos field in struct passwd is not standard
-#ifdef HAVE_PW_GECOS
        char *comma = strchr(who->pw_gecos, ',');
        if (comma)
            *comma = '\0'; // cut off non-name comment fields
-       wxStrncpy (buf, wxConvertMB2WX(who->pw_gecos), sz - 1);
-#else // !HAVE_PW_GECOS
-       wxStrncpy (buf, wxConvertMB2WX(who->pw_name), sz - 1);
-#endif // HAVE_PW_GECOS/!HAVE_PW_GECOS
+       wxStrncpy (buf, wxSafeConvertMB2WX(who->pw_gecos), sz - 1);
        return true;
     }
 
     return false;
+#else // !HAVE_PW_GECOS
+    return wxGetUserId(buf, sz);
+#endif // HAVE_PW_GECOS/!HAVE_PW_GECOS
+}
+
+bool wxIsPlatform64Bit()
+{
+    wxString machine = wxGetCommandOutput(wxT("uname -m"));
+
+    // NOTE: these tests are not 100% reliable!
+    return machine.Contains(wxT("AMD64")) ||
+           machine.Contains(wxT("IA64")) ||
+           machine.Contains(wxT("x64")) ||
+           machine.Contains(wxT("X64")) ||
+           machine.Contains(wxT("alpha")) ||
+           machine.Contains(wxT("hppa64")) ||
+           machine.Contains(wxT("ppc64"));
 }
 
-// this function is in mac/utils.cpp for wxMac
+// these functions are in mac/utils.cpp for wxMac
 #ifndef __WXMAC__
 
-wxString wxGetOsDescription()
+wxOperatingSystemId wxGetOsVersion(int *verMaj, int *verMin)
 {
-    FILE *f = popen("uname -s -r -m", "r");
-    if (f)
+    // get OS version
+    int major, minor;
+    wxString release = wxGetCommandOutput(wxT("uname -r"));
+    if ( release.empty() || wxSscanf(release, wxT("%d.%d"), &major, &minor) != 2 )
     {
-        char buf[256];
-        size_t c = fread(buf, 1, sizeof(buf) - 1, f);
-        pclose(f);
-        // Trim newline from output.
-        if (c && buf[c - 1] == '\n')
-            --c;
-        buf[c] = '\0';
-        return wxString::FromAscii( buf );
+        // failed to get version string or unrecognized format
+        major =
+        minor = -1;
     }
-    wxFAIL_MSG( _T("uname failed") );
-    return wxEmptyString;
+
+    if ( verMaj )
+        *verMaj = major;
+    if ( verMin )
+        *verMin = minor;
+
+    // try to understand which OS are we running
+    wxString kernel = wxGetCommandOutput(wxT("uname -s"));
+    if ( kernel.empty() )
+        kernel = wxGetCommandOutput(wxT("uname -o"));
+
+    if ( kernel.empty() )
+        return wxOS_UNKNOWN;
+
+    return wxPlatformInfo::GetOperatingSystemId(kernel);
+}
+
+wxString wxGetOsDescription()
+{
+    return wxGetCommandOutput(wxT("uname -s -r -m"));
 }
 
 #endif // !__WXMAC__
@@ -907,20 +964,43 @@ wxMemorySize wxGetFreeMemory()
         char buf[1024];
         if ( fgets(buf, WXSIZEOF(buf), fp) && fgets(buf, WXSIZEOF(buf), fp) )
         {
-            long memTotal, memUsed;
-            sscanf(buf, "Mem: %ld %ld %ld", &memTotal, &memUsed, &memFree);
+            // /proc/meminfo changed its format in kernel 2.6
+            if ( wxPlatformInfo().CheckOSVersion(2, 6) )
+            {
+                unsigned long cached, buffers;
+                sscanf(buf, "MemFree: %ld", &memFree);
+
+                fgets(buf, WXSIZEOF(buf), fp);
+                sscanf(buf, "Buffers: %lu", &buffers);
+
+                fgets(buf, WXSIZEOF(buf), fp);
+                sscanf(buf, "Cached: %lu", &cached);
+
+                // add to "MemFree" also the "Buffers" and "Cached" values as
+                // free(1) does as otherwise the value never makes sense: for
+                // kernel 2.6 it's always almost 0
+                memFree += buffers + cached;
+
+                // values here are always expressed in kB and we want bytes
+                memFree *= 1024;
+            }
+            else // Linux 2.4 (or < 2.6, anyhow)
+            {
+                long memTotal, memUsed;
+                sscanf(buf, "Mem: %ld %ld %ld", &memTotal, &memUsed, &memFree);
+            }
         }
 
         fclose(fp);
 
         return (wxMemorySize)memFree;
     }
-#elif defined(__SUN__) && defined(_SC_AVPHYS_PAGES)
-    return (wxMemorySize)(sysconf(_SC_AVPHYS_PAGES)*sysconf(_SC_PAGESIZE));
 #elif defined(__SGI__)
     struct rminfo realmem;
     if ( sysmp(MP_SAGET, MPSA_RMINFO, &realmem, sizeof realmem) == 0 )
         return ((wxMemorySize)realmem.physmem * sysconf(_SC_PAGESIZE));
+#elif defined(_SC_AVPHYS_PAGES)
+    return ((wxMemorySize)sysconf(_SC_AVPHYS_PAGES))*sysconf(_SC_PAGESIZE);
 //#elif defined(__FREEBSD__) -- might use sysctl() to find it out, probably
 #endif
 
@@ -1159,55 +1239,93 @@ int wxGUIAppTraits::WaitForChild(wxExecuteData& execData)
     }
 
 
+    if ( !(flags & wxEXEC_NOEVENTS) )
+    {
 #if defined(__DARWIN__) && (defined(__WXMAC__) || defined(__WXCOCOA__))
-    endProcData->tag = wxAddProcessCallbackForPid(endProcData, execData.pid);
+        endProcData->tag = wxAddProcessCallbackForPid(endProcData, execData.pid);
 #else
-    endProcData->tag = wxAddProcessCallback
-                (
-                    endProcData,
-                    execData.pipeEndProcDetect.Detach(wxPipe::Read)
-                );
+        endProcData->tag = wxAddProcessCallback
+                           (
+                             endProcData,
+                             execData.pipeEndProcDetect.Detach(wxPipe::Read)
+                           );
 
-    execData.pipeEndProcDetect.Close();
+        execData.pipeEndProcDetect.Close();
 #endif // defined(__DARWIN__) && (defined(__WXMAC__) || defined(__WXCOCOA__))
+    }
 
     if ( flags & wxEXEC_SYNC )
     {
         wxBusyCursor bc;
-        wxWindowDisabler *wd = flags & wxEXEC_NODISABLE ? NULL
-                                                        : new wxWindowDisabler;
+        int exitcode = 0;
 
-        // endProcData->pid will be set to 0 from GTK_EndProcessDetector when the
-        // process terminates
-        while ( endProcData->pid != 0 )
+        wxWindowDisabler *wd = flags & (wxEXEC_NODISABLE | wxEXEC_NOEVENTS)
+                                    ? NULL
+                                    : new wxWindowDisabler;
+
+        if ( flags & wxEXEC_NOEVENTS )
         {
-            bool idle = true;
+            // just block waiting for the child to exit
+            int status = 0;
+
+            int result = waitpid(execData.pid, &status, 0);
 
-#if wxUSE_STREAMS
-            if ( execData.bufOut )
+            if ( result == -1 )
             {
-                execData.bufOut->Update();
-                idle = false;
+                wxLogLastError(_T("waitpid"));
+                exitcode = -1;
             }
-
-            if ( execData.bufErr )
+            else
             {
-                execData.bufErr->Update();
-                idle = false;
+                wxASSERT_MSG( result == execData.pid,
+                              _T("unexpected waitpid() return value") );
+
+                if ( WIFEXITED(status) )
+                {
+                    exitcode = WEXITSTATUS(status);
+                }
+                else // abnormal termination?
+                {
+                    wxASSERT_MSG( WIFSIGNALED(status),
+                                  _T("unexpected child wait status") );
+                    exitcode = -1;
+                }
             }
-#endif // wxUSE_STREAMS
+        }
+        else // !wxEXEC_NOEVENTS
+        {
+            // endProcData->pid will be set to 0 from GTK_EndProcessDetector when the
+            // process terminates
+            while ( endProcData->pid != 0 )
+            {
+                bool idle = true;
 
-            // don't consume 100% of the CPU while we're sitting in this
-            // loop
-            if ( idle )
-                wxMilliSleep(1);
+#if HAS_PIPE_INPUT_STREAM
+                if ( execData.bufOut )
+                {
+                    execData.bufOut->Update();
+                    idle = false;
+                }
 
-            // give GTK+ a chance to call GTK_EndProcessDetector here and
-            // also repaint the GUI
-            wxYield();
-        }
+                if ( execData.bufErr )
+                {
+                    execData.bufErr->Update();
+                    idle = false;
+                }
+#endif // HAS_PIPE_INPUT_STREAM
+
+                // don't consume 100% of the CPU while we're sitting in this
+                // loop
+                if ( idle )
+                    wxMilliSleep(1);
 
-        int exitcode = endProcData->exitcode;
+                // give GTK+ a chance to call GTK_EndProcessDetector here and
+                // also repaint the GUI
+                wxYield();
+            }
+
+            exitcode = endProcData->exitcode;
+        }
 
         delete wd;
         delete endProcData;