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authortpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-09-09 20:27:19 +0000
committertpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-09-09 20:27:19 +0000
commitc6ca83d07d95e076b09bd802f66ba72d363b0235 (patch)
treef13000febb0c9c5a5da621b4bba53ba3eace022e /common/common.h
downloadkgtk-qt3-c6ca83d07d95e076b09bd802f66ba72d363b0235.tar.gz
kgtk-qt3-c6ca83d07d95e076b09bd802f66ba72d363b0235.zip
* Added kgtk-qt3
* Slight kpowersave message cleanup git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/kgtk-qt3@1173604 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'common/common.h')
-rw-r--r--common/common.h237
1 files changed, 237 insertions, 0 deletions
diff --git a/common/common.h b/common/common.h
new file mode 100644
index 0000000..ca246b9
--- /dev/null
+++ b/common/common.h
@@ -0,0 +1,237 @@
+#ifndef __COMMON_H__
+#define __COMMON_H__
+
+#define KDIALOGD_APP
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <time.h>
+#include "config.h"
+
+#ifdef __KDIALOGD_H__
+#include <kstandarddirs.h>
+#endif
+
+typedef enum
+{
+ OP_NULL = 0,
+ OP_FILE_OPEN = 1,
+ OP_FILE_OPEN_MULTIPLE = 2,
+ OP_FILE_SAVE = 3,
+ OP_FOLDER = 4
+} Operation;
+
+#define PID_DIR "kde-"
+#define PID_NAME "kdialogd.pid"
+
+static const char * getPidFileName()
+{
+ static char *pidfile=NULL;
+
+ if(!pidfile)
+ {
+ char *user=getenv("USER");
+
+ if(!user)
+ user=getenv("LOGNAME");
+
+ if(user)
+ {
+ char *tmp=getenv("KDETMP");
+
+ if(!tmp || !tmp[0])
+ tmp=getenv("TMPDIR");
+
+ if(!tmp || !tmp[0])
+ tmp=(char *)"/tmp";
+
+ pidfile=(char *)malloc(strlen(tmp)+strlen(PID_DIR)+strlen(user)+strlen(PID_NAME)+1);
+ pidfile=(char *)malloc(strlen(tmp)+strlen("/")+strlen(PID_DIR)+strlen(user)+strlen("/")+strlen(PID_NAME)+1);
+
+#ifdef __KDIALOGD_H__
+ // We are kdialogd - so create socket folder if it does not exist...
+ sprintf(pidfile, "%s/%s%s", tmp, PID_DIR, user);
+ KStandardDirs::makeDir(QString::fromAscii(pidfile));
+#endif
+
+ /* CPD: TODO get dispaly number! */
+ sprintf(pidfile, "%s/%s%s/%s", tmp, PID_DIR, user, PID_NAME);
+ }
+ }
+
+ return pidfile;
+}
+
+#define SOCK_DIR "ksocket-"
+#define SOCK_NAME "kdialogd"
+
+static const char * getSockName()
+{
+ static char *sock=NULL;
+
+ if(!sock)
+ {
+ char *user=getenv("USER");
+
+ if(!user)
+ user=getenv("LOGNAME");
+
+ if(user)
+ {
+ char *tmp=getenv("KDETMP");
+
+ if(!tmp || !tmp[0])
+ tmp=getenv("TMPDIR");
+
+ if(!tmp || !tmp[0])
+ tmp=(char *)"/tmp";
+
+ sock=(char *)malloc(strlen(tmp)+strlen("/")+strlen(SOCK_DIR)+strlen(user)+strlen("/")+strlen(SOCK_NAME)+strlen("18446744073709551616")+1);
+
+#ifdef __KDIALOGD_H__
+ // We are kdialogd - so create socket folder if it does not exist...
+ sprintf(sock, "%s/%s%s", tmp, SOCK_DIR, user);
+ KStandardDirs::makeDir(QString::fromAscii(sock));
+#endif
+
+ /* CPD: TODO get dispaly number! */
+ sprintf(sock, "%s/%s%s/%s-%d", tmp, SOCK_DIR, user, SOCK_NAME, 1);
+ }
+ }
+
+ return sock;
+}
+
+static int readBlock(int fd, char* pData, int size)
+{
+ int bytesToRead=size;
+
+ do
+ {
+ fd_set fdSet;
+
+ FD_ZERO(&fdSet);
+ FD_SET(fd, &fdSet);
+
+ if(select(fd + 1, &fdSet, NULL, NULL, NULL)<0)
+ return 0;
+
+ if(FD_ISSET(fd, &fdSet))
+ {
+ int bytesRead=read(fd, &pData[size-bytesToRead], bytesToRead);
+
+ if (bytesRead>0)
+ bytesToRead-=bytesRead;
+ else
+ return 0;
+ }
+ }
+ while(bytesToRead>0);
+
+ return 1;
+}
+
+static int writeBlock(int fd, const char *pData, int size)
+{
+ int bytesToWrite=size;
+
+ do
+ {
+ fd_set fdSet;
+
+ FD_ZERO(&fdSet);
+ FD_SET(fd, &fdSet);
+
+ if(select(fd + 1, NULL, &fdSet, NULL, NULL)<0)
+ return 0;
+
+ if(FD_ISSET(fd, &fdSet))
+ {
+ int bytesWritten=write(fd, (char *)&pData[size-bytesToWrite], bytesToWrite);
+
+ if (bytesWritten>0)
+ bytesToWrite-=bytesWritten;
+ else
+ return 0;
+ }
+ }
+ while(bytesToWrite>0);
+
+ return 1;
+}
+
+#ifdef KDIALOGD_APP
+/*
+ So that kdailogd can terminate when the last app exits, need a way of synchronising the Gtk/Qt
+ apps that may wish to connect, and the removal of the socket.
+
+ To this en, a lockfile is created,and used to guard around the critical sections
+*/
+static int lockFd=-1;
+
+#define LOCK_EXT ".lock"
+
+const char * getLockName()
+{
+ static char *lockName=NULL;
+
+ if(!lockName)
+ {
+ const char *sock=getSockName();
+
+ if(sock)
+ {
+ lockName=(char *)malloc(strlen(sock)+strlen(LOCK_EXT)+1);
+ sprintf(lockName, "%s%s", sock, LOCK_EXT);
+ }
+ }
+
+ return lockName;
+}
+
+/* Lock is stale if it does not exist or is older than 2 seconds */
+static int isStale(const char *fname)
+{
+ struct stat stat_buf;
+
+ return 0!=stat(fname, &stat_buf) ||
+ abs(stat_buf.st_mtime-time(NULL))>2;
+}
+
+static int grabLock(int tries)
+{
+ do
+ {
+ lockFd=open(getLockName(), O_WRONLY | O_CREAT | O_EXCL, 0777);
+ if (lockFd<0 && errno==EEXIST)
+ {
+ /* Hmm, lock file already exists. Is it stale? */
+ if(isStale(getLockName()))
+ {
+ tries++; /* Increment tries so that we try again... */
+ unlink(getLockName());
+ }
+ else if(tries)
+ usleep(100000);
+ }
+ }
+ while(lockFd<0 && --tries);
+
+ return lockFd;
+}
+
+static void releaseLock()
+{
+ if(lockFd>0)
+ {
+ close(lockFd);
+ unlink(getLockName());
+ }
+}
+#endif
+
+#endif