add reload support. add make install and uninstall

@@ -551,5 +551,9 @@ else
     echo "#undef SRS_ARM_UBUNTU12" >> $SRS_AUTO_HEADERS_H
 fi
 
+echo "" >> $SRS_AUTO_HEADERS_H
+# prefix
+echo "#define SRS_PREFIX \"${SRS_PREFIX}\"" >> $SRS_AUTO_HEADERS_H
+
 # new empty line to auto headers file.
 echo "" >> $SRS_AUTO_HEADERS_H

@@ -29,6 +29,7 @@ SRS_GPERF_CP=RESERVED # gperf cpu profile
 SRS_GPROF=RESERVED # gprof
 SRS_ARM_UBUNTU12=RESERVED # armhf(v7cpu) built on ubuntu12
 # arguments
+SRS_PREFIX=/usr/local/srs
 SRS_JOBS=1
 SRS_STATIC=RESERVED
 
@@ -85,6 +86,7 @@ do
         --without-arm-ubuntu12)         SRS_ARM_UBUNTU12=NO       ;;
         
         --jobs)                         SRS_JOBS=${value}         ;;
+        --prefix)                       SRS_PREFIX=${value}       ;;
         --static)                       SRS_STATIC=YES            ;;
 
         *)
@@ -188,6 +190,7 @@ if [ $help = yes ]; then
   --static                 whether add '-static' to link options. always set this option for arm.
   --jobs[=N]               Allow N jobs at once; infinite jobs with no arg.
                            used for make in the configure, for example, to make ffmpeg.
+  --prefix=<path>           the absolute install path for srs.
 
 END
     exit 0
@@ -250,6 +253,7 @@ if [ $SRS_GPERF_MP = RESERVED ]; then echo "you must specifies the gperf-mp, see
 if [ $SRS_GPERF_CP = RESERVED ]; then echo "you must specifies the gperf-cp, see: ./configure --help"; __check_ok=NO; fi
 if [ $SRS_GPROF = RESERVED ]; then echo "you must specifies the gprof, see: ./configure --help"; __check_ok=NO; fi
 if [ $SRS_ARM_UBUNTU12 = RESERVED ]; then echo "you must specifies the arm-ubuntu12, see: ./configure --help"; __check_ok=NO; fi
+if [[ -z $SRS_PREFIX ]]; then echo "you must specifies the prefix, see: ./configure --prefix"; __check_ok=NO; fi
 if [ $__check_ok = NO ]; then
     exit 1;
 fi
@@ -272,5 +276,5 @@ if [ $SRS_GPERF_CP = YES ]; then SRS_CONFIGURE="${SRS_CONFIGURE} --with-gcp"; el
 if [ $SRS_GPROF = YES ]; then SRS_CONFIGURE="${SRS_CONFIGURE} --with-gprof"; else SRS_CONFIGURE="${SRS_CONFIGURE} --without-gprof"; fi
 if [ $SRS_ARM_UBUNTU12 = YES ]; then SRS_CONFIGURE="${SRS_CONFIGURE} --with-arm-ubuntu12"; else SRS_CONFIGURE="${SRS_CONFIGURE} --without-arm-ubuntu12"; fi
 if [ $SRS_STATIC = YES ]; then SRS_CONFIGURE="${SRS_CONFIGURE} --static"; fi
-SRS_CONFIGURE="${SRS_CONFIGURE} ${SRS_JOBS}"
+SRS_CONFIGURE="${SRS_CONFIGURE} ${SRS_JOBS} --prefix=${SRS_PREFIX}"
 echo "regenerate config: ${SRS_CONFIGURE}"

@@ -158,7 +158,10 @@ END
 # makefile
 echo "generate Makefile"
 cat << END > ${SRS_MAKEFILE}
-.PHONY: default _default help clean server bandwidth librtmp librtmp-sample utest _prepare_dir
+.PHONY: default _default install help clean server bandwidth librtmp librtmp-sample utest _prepare_dir
+
+# install prefix.
+SRS_PREFIX=${SRS_PREFIX}
 
 END
 
@@ -184,7 +187,7 @@ _default: bandwidth librtmp-sample utest
 	@bash objs/_srs_build_summary.sh
 
 help:
-	@echo "Usage: make <help>|<clean>|<server>|<bandwidth>|<librtmp>|<librtmp-sample>|<utest>"
+	@echo "Usage: make <help>|<clean>|<server>|<bandwidth>|<librtmp>|<librtmp-sample>|<utest>|<install>|<uninstall>"
 	@echo "  help               display this help menu"
 	@echo "  clean              cleanup project"
 	@echo "  server             build the srs(simple rtmp server) over st(state-threads)"
@@ -192,6 +195,8 @@ help:
 	@echo "  librtmp            build the client publish/play library."
 	@echo "  librtmp-sample     build the srs-librtmp sample"
 	@echo "  utest              build the utest for srs"
+	@echo "  install            install srs to the prefix path"
+	@echo "  uninstall          uninstall srs from prefix path"
 
 clean: 
 	(cd ${SRS_OBJS}; rm -f rm -rf srs bandwidth srs_utest)
@@ -204,6 +209,28 @@ server: _prepare_dir
 
 END
 
+# install entry
+cat << END >> ${SRS_MAKEFILE}
+uninstall:
+	@echo "rmdir \$(SRS_PREFIX)"
+	@rm -rf \$(SRS_PREFIX)
+
+install:
+	@echo "mkdir \$(SRS_PREFIX)"
+	@mkdir -p \$(SRS_PREFIX)
+	@echo "copy binary files"
+	@mkdir -p \$(SRS_PREFIX)/objs
+	@cp objs/srs \$(SRS_PREFIX)/objs
+	@echo "copy srs conf files"
+	@mkdir -p \$(SRS_PREFIX)/conf
+	@cp conf/*.conf \$(SRS_PREFIX)/conf
+	@echo "copy init.d script files"
+	@mkdir -p \$(SRS_PREFIX)/etc/init.d
+	@cp etc/init.d/simple-rtmp-server \$(SRS_PREFIX)/etc/init.d
+	@sed -i "s|^ROOT=.*|ROOT=\"\$(SRS_PREFIX)\"|g" \$(SRS_PREFIX)/etc/init.d/simple-rtmp-server
+
+END
+
 if [ $SRS_BWTC = YES ]; then
     cat << END >> ${SRS_MAKEFILE}
 bandwidth: server

@@ -10,18 +10,22 @@
 # Description:       https://github.com/winlinvip/simple-rtmp-server
 ### END INIT INFO
 
+# the config of ROOT, user must modify it when start srs from other directory,
+# it's ok to use the script by command ./etc/init.d/simple-rtmp-server
+ROOT="./"
+APP="./objs/srs"
+CONFIG="./conf/srs.conf"
+DEFAULT_PID_FILE='./objs/srs.pid'
+
+########################################################################
+# utility functions
+########################################################################
 RED="\\e[31m"
 GREEN="\\e[32m"
 YELLOW="\\e[33m"
 BLACK="\\e[0m"
 POS="\\e[60G"
 
-# the pid file is generated by install wizard
-ROOT="./"
-APP="./objs/srs"
-CONFIG="./conf/srs.conf"
-DEFAULT_PID_FILE='./objs/srs.pid'
-
 ok_msg(){
     echo -e "${1}${POS}${BLACK}[${GREEN}  OK  ${BLACK}]"
 }
@@ -41,7 +45,11 @@ load_process_info() {
     srs_pid_file=`cat ${ROOT}/${CONFIG} |grep ^pid|awk '{print $2}'|awk -F ';' '{print $1}'`
     if [[ -z $srs_pid_file ]]; then srs_pid_file=${DEFAULT_PID_FILE}; fi
     
-    srs_pid=`cat $srs_pid_file 2>/dev/null`
+    if [[ -f $srs_pid_file ]]; then
+        srs_pid=`cat $srs_pid_file 2>/dev/null`
+    else
+        srs_pid=`cat ${ROOT}/$srs_pid_file 2>/dev/null`
+    fi
     ret=$?; if [[ 0 -ne $ret ]]; then error_msg="file $srs_pid_file does not exists"; return 1; fi
     
     ps -p ${srs_pid} >/dev/null 2>/dev/null
@@ -53,15 +61,10 @@ load_process_info() {
 start() {
     # if exists, exit.
     load_process_info
-    if [[ 0 -eq $? ]]; then
-        failed_msg "srs started(pid ${srs_pid}), should not start it again."
-        return 0
-    fi
-    
-    # try to get log dir.
+    if [[ 0 -eq $? ]]; then failed_msg "SRS started(pid ${srs_pid}), should not start it again."; return 0; fi
     
     # not exists, start server
-    ok_msg "Starting srs..."
+    ok_msg "Starting SRS..."
     # TODO: FIXME: set limit by, for instance, "ulimit -HSn 10000"
     # TODO: FIXME: write log to, for instance, the same dir of log.
     # TODO: FIXME: support deamon, without nohup.
@@ -69,22 +72,18 @@ start() {
     
     # check again after start server
     load_process_info
-    if [[ 0 -eq $? ]]; then
-        ok_msg "srs started(pid ${srs_pid})"
-    else
-        failed_msg "srs not started"
-    fi
+    ret=$?; if [[ 0 -eq $? ]]; then ok_msg "SRS started(pid ${srs_pid})"; return 0; fi
+    
+    failed_msg "SRS not started"
+    return $ret
 }
 
 stop() {
     # not start, exit
     load_process_info
-    if [[ 0 -ne $? ]]; then
-        failed_msg "srs not start."
-        return 0
-    fi
+    if [[ 0 -ne $? ]]; then failed_msg "SRS not start."; return 0; fi
     
-    ok_msg "Stopping srs(pid ${srs_pid})..."
+    ok_msg "Stopping SRS(pid ${srs_pid})..."
     
     # process exists, kill util stop
     for((;;)); do
@@ -94,7 +93,7 @@ stop() {
             ret=$?; if [[ 0 -ne $ret ]]; then failed_msg "send signal SIGTERM failed ret=$ret"; return $ret; fi
             sleep 0.1
         else
-            ok_msg "srs stopped"
+            ok_msg "SRS stopped"
             break;
         fi
     done
@@ -107,15 +106,30 @@ stop() {
 # @return 0 if srs is running; otherwise, 1 for stopped.
 status() {
     load_process_info
-    ret=$?; if [[ 0 -eq $ret ]]; then
-        echo "srs(pid ${srs_pid}) is running."
-        return 0
-    fi
+    ret=$?; if [[ 0 -eq $ret ]]; then echo "SRS(pid ${srs_pid}) is running."; return 0; fi
     
-    echo "srs is stopped, $error_msg"
+    echo "SRS is stopped, $error_msg"
     return 1
 }
 
+reload() {
+    # not start, exit
+    load_process_info
+    if [[ 0 -ne $? ]]; then failed_msg "SRS not start."; return 0; fi
+    
+    ok_msg "Reload SRS(pid ${srs_pid})..."
+    
+    # process exists, reload it
+    kill -s SIGHUP ${srs_pid} 2>/dev/null
+    ret=$?; if [[ 0 -ne $ret ]]; then failed_msg "Reload SRS failed ret=$ret"; return $ret; fi
+    
+    load_process_info
+    if [[ 0 -ne $? ]]; then failed_msg "SRS reload failed."; return $ret; fi
+    
+    ok_msg "SRS reloaded"
+    return 0
+}
+
 menu() {
     case "$1" in
         start)
@@ -131,6 +145,9 @@ menu() {
         status)
             status
             ;;
+        reload)
+            reload
+            ;;
         *)
             echo "Usage: $0 {start|stop|status|restart|reload}"
             return 1