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<h1>JackTools.cpp</h1> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> Copyright (C) 2006-2008 Grame</span>
<a name="l00003"></a>00003 <span class="comment"></span>
<a name="l00004"></a>00004 <span class="comment"> This program is free software; you can redistribute it and/or modify</span>
<a name="l00005"></a>00005 <span class="comment"> it under the terms of the GNU Lesser General Public License as published by</span>
<a name="l00006"></a>00006 <span class="comment"> the Free Software Foundation; either version 2.1 of the License, or</span>
<a name="l00007"></a>00007 <span class="comment"> (at your option) any later version.</span>
<a name="l00008"></a>00008 <span class="comment"></span>
<a name="l00009"></a>00009 <span class="comment"> This program is distributed in the hope that it will be useful,</span>
<a name="l00010"></a>00010 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00011"></a>00011 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00012"></a>00012 <span class="comment"> GNU Lesser General Public License for more details.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment"> You should have received a copy of the GNU Lesser General Public License</span>
<a name="l00015"></a>00015 <span class="comment"> along with this program; if not, write to the Free Software</span>
<a name="l00016"></a>00016 <span class="comment"> Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.</span>
<a name="l00017"></a>00017 <span class="comment"></span>
<a name="l00018"></a>00018 <span class="comment">*/</span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="preprocessor">#include "JackConstants.h"</span>
<a name="l00021"></a>00021 <span class="preprocessor">#include "JackDriverLoader.h"</span>
<a name="l00022"></a>00022 <span class="preprocessor">#include "JackTools.h"</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include "JackError.h"</span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <stdio.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <assert.h></span>
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="preprocessor">#ifdef WIN32</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span><span class="preprocessor">#include <process.h></span>
<a name="l00030"></a>00030 <span class="preprocessor">#endif</span>
<a name="l00031"></a>00031 <span class="preprocessor"></span>
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="keyword">using namespace </span>std;
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="keyword">namespace </span>Jack {
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="keywordtype">void</span> JackTools::KillServer()
<a name="l00038"></a>00038 {
<a name="l00039"></a>00039 <span class="preprocessor">#ifdef WIN32</span>
<a name="l00040"></a>00040 <span class="preprocessor"></span> exit(1);
<a name="l00041"></a>00041 <span class="preprocessor">#else</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span> kill(GetPID(), SIGINT);
<a name="l00043"></a>00043 <span class="preprocessor">#endif</span>
<a name="l00044"></a>00044 <span class="preprocessor"></span> }
<a name="l00045"></a>00045
<a name="l00046"></a>00046 <span class="keywordtype">void</span> JackTools::ThrowJackNetException()
<a name="l00047"></a>00047 {
<a name="l00048"></a>00048 <span class="keywordflow">throw</span> JackNetException();
<a name="l00049"></a>00049 }
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="keywordtype">int</span> JackTools::MkDir(<span class="keyword">const</span> <span class="keywordtype">char</span>* path)
<a name="l00052"></a>00052 {
<a name="l00053"></a>00053 <span class="preprocessor">#ifdef WIN32</span>
<a name="l00054"></a>00054 <span class="preprocessor"></span> <span class="keywordflow">return</span> CreateDirectory(path, NULL) == 0;
<a name="l00055"></a>00055 <span class="preprocessor">#else</span>
<a name="l00056"></a>00056 <span class="preprocessor"></span> <span class="keywordflow">return</span> mkdir(path, 0777) != 0;
<a name="l00057"></a>00057 <span class="preprocessor">#endif</span>
<a name="l00058"></a>00058 <span class="preprocessor"></span> }
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="preprocessor">#define DEFAULT_TMP_DIR "/tmp"</span>
<a name="l00061"></a>00061 <span class="preprocessor"></span> <span class="keywordtype">char</span>* jack_tmpdir = (<span class="keywordtype">char</span>*)DEFAULT_TMP_DIR;
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="keywordtype">int</span> JackTools::GetPID()
<a name="l00064"></a>00064 {
<a name="l00065"></a>00065 <span class="preprocessor">#ifdef WIN32</span>
<a name="l00066"></a>00066 <span class="preprocessor"></span> <span class="keywordflow">return</span> _getpid();
<a name="l00067"></a>00067 <span class="preprocessor">#else</span>
<a name="l00068"></a>00068 <span class="preprocessor"></span> <span class="keywordflow">return</span> getpid();
<a name="l00069"></a>00069 <span class="preprocessor">#endif</span>
<a name="l00070"></a>00070 <span class="preprocessor"></span> }
<a name="l00071"></a>00071
<a name="l00072"></a>00072 <span class="keywordtype">int</span> JackTools::GetUID()
<a name="l00073"></a>00073 {
<a name="l00074"></a>00074 <span class="preprocessor">#ifdef WIN32</span>
<a name="l00075"></a>00075 <span class="preprocessor"></span> <span class="keywordflow">return</span> _getpid();
<a name="l00076"></a>00076 <span class="comment">//#error "No getuid function available"</span>
<a name="l00077"></a>00077 <span class="preprocessor">#else</span>
<a name="l00078"></a>00078 <span class="preprocessor"></span> <span class="keywordflow">return</span> getuid();
<a name="l00079"></a>00079 <span class="preprocessor">#endif</span>
<a name="l00080"></a>00080 <span class="preprocessor"></span> }
<a name="l00081"></a>00081
<a name="l00082"></a>00082 <span class="keyword">const</span> <span class="keywordtype">char</span>* JackTools::DefaultServerName()
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 <span class="keyword">const</span> <span class="keywordtype">char</span>* server_name;
<a name="l00085"></a>00085 <span class="keywordflow">if</span> ((server_name = getenv(<span class="stringliteral">"JACK_DEFAULT_SERVER"</span>)) == NULL)
<a name="l00086"></a>00086 server_name = JACK_DEFAULT_SERVER_NAME;
<a name="l00087"></a>00087 <span class="keywordflow">return</span> server_name;
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089
<a name="l00090"></a>00090 <span class="comment">/* returns the name of the per-user subdirectory of jack_tmpdir */</span>
<a name="l00091"></a>00091 <span class="preprocessor">#ifdef WIN32</span>
<a name="l00092"></a>00092 <span class="preprocessor"></span>
<a name="l00093"></a>00093 <span class="keywordtype">char</span>* JackTools::UserDir()
<a name="l00094"></a>00094 {
<a name="l00095"></a>00095 <span class="keywordflow">return</span> <span class="stringliteral">""</span>;
<a name="l00096"></a>00096 }
<a name="l00097"></a>00097
<a name="l00098"></a>00098 <span class="keywordtype">char</span>* JackTools::ServerDir(<span class="keyword">const</span> <span class="keywordtype">char</span>* server_name, <span class="keywordtype">char</span>* server_dir)
<a name="l00099"></a>00099 {
<a name="l00100"></a>00100 <span class="keywordflow">return</span> <span class="stringliteral">""</span>;
<a name="l00101"></a>00101 }
<a name="l00102"></a>00102
<a name="l00103"></a>00103 <span class="keywordtype">void</span> JackTools::CleanupFiles(<span class="keyword">const</span> <span class="keywordtype">char</span>* server_name) {}
<a name="l00104"></a>00104
<a name="l00105"></a>00105 <span class="keywordtype">int</span> JackTools::GetTmpdir()
<a name="l00106"></a>00106 {
<a name="l00107"></a>00107 <span class="keywordflow">return</span> 0;
<a name="l00108"></a>00108 }
<a name="l00109"></a>00109
<a name="l00110"></a>00110 <span class="preprocessor">#else</span>
<a name="l00111"></a>00111 <span class="preprocessor"></span> <span class="keywordtype">char</span>* JackTools::UserDir()
<a name="l00112"></a>00112 {
<a name="l00113"></a>00113 <span class="keyword">static</span> <span class="keywordtype">char</span> user_dir[JACK_PATH_MAX + 1] = <span class="stringliteral">""</span>;
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="comment">/* format the path name on the first call */</span>
<a name="l00116"></a>00116 <span class="keywordflow">if</span> (user_dir[0] == <span class="charliteral">'\0'</span>) {
<a name="l00117"></a>00117 <span class="keywordflow">if</span> (getenv (<span class="stringliteral">"JACK_PROMISCUOUS_SERVER"</span>)) {
<a name="l00118"></a>00118 snprintf(user_dir, <span class="keyword">sizeof</span>(user_dir), <span class="stringliteral">"%s/jack"</span>, jack_tmpdir);
<a name="l00119"></a>00119 } <span class="keywordflow">else</span> {
<a name="l00120"></a>00120 snprintf(user_dir, <span class="keyword">sizeof</span>(user_dir), <span class="stringliteral">"%s/jack-%d"</span>, jack_tmpdir, GetUID());
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122 }
<a name="l00123"></a>00123
<a name="l00124"></a>00124 <span class="keywordflow">return</span> user_dir;
<a name="l00125"></a>00125 }
<a name="l00126"></a>00126
<a name="l00127"></a>00127 <span class="comment">/* returns the name of the per-server subdirectory of jack_user_dir() */</span>
<a name="l00128"></a>00128 <span class="keywordtype">char</span>* JackTools::ServerDir(<span class="keyword">const</span> <span class="keywordtype">char</span>* server_name, <span class="keywordtype">char</span>* server_dir)
<a name="l00129"></a>00129 {
<a name="l00130"></a>00130 <span class="comment">/* format the path name into the suppled server_dir char array,</span>
<a name="l00131"></a>00131 <span class="comment"> * assuming that server_dir is at least as large as JACK_PATH_MAX + 1 */</span>
<a name="l00132"></a>00132
<a name="l00133"></a>00133 snprintf(server_dir, JACK_PATH_MAX + 1, <span class="stringliteral">"%s/%s"</span>, UserDir(), server_name);
<a name="l00134"></a>00134 <span class="keywordflow">return</span> server_dir;
<a name="l00135"></a>00135 }
<a name="l00136"></a>00136
<a name="l00137"></a>00137 <span class="keywordtype">void</span> JackTools::CleanupFiles(<span class="keyword">const</span> <span class="keywordtype">char</span>* server_name)
<a name="l00138"></a>00138 {
<a name="l00139"></a>00139 DIR* dir;
<a name="l00140"></a>00140 <span class="keyword">struct </span>dirent *dirent;
<a name="l00141"></a>00141 <span class="keywordtype">char</span> dir_name[JACK_PATH_MAX + 1] = <span class="stringliteral">""</span>;
<a name="l00142"></a>00142 ServerDir(server_name, dir_name);
<a name="l00143"></a>00143
<a name="l00144"></a>00144 <span class="comment">/* On termination, we remove all files that jackd creates so</span>
<a name="l00145"></a>00145 <span class="comment"> * subsequent attempts to start jackd will not believe that an</span>
<a name="l00146"></a>00146 <span class="comment"> * instance is already running. If the server crashes or is</span>
<a name="l00147"></a>00147 <span class="comment"> * terminated with SIGKILL, this is not possible. So, cleanup</span>
<a name="l00148"></a>00148 <span class="comment"> * is also attempted when jackd starts.</span>
<a name="l00149"></a>00149 <span class="comment"> *</span>
<a name="l00150"></a>00150 <span class="comment"> * There are several tricky issues. First, the previous JACK</span>
<a name="l00151"></a>00151 <span class="comment"> * server may have run for a different user ID, so its files</span>
<a name="l00152"></a>00152 <span class="comment"> * may be inaccessible. This is handled by using a separate</span>
<a name="l00153"></a>00153 <span class="comment"> * JACK_TMP_DIR subdirectory for each user. Second, there may</span>
<a name="l00154"></a>00154 <span class="comment"> * be other servers running with different names. Each gets</span>
<a name="l00155"></a>00155 <span class="comment"> * its own subdirectory within the per-user directory. The</span>
<a name="l00156"></a>00156 <span class="comment"> * current process has already registered as `server_name', so</span>
<a name="l00157"></a>00157 <span class="comment"> * we know there is no other server actively using that name.</span>
<a name="l00158"></a>00158 <span class="comment"> */</span>
<a name="l00159"></a>00159
<a name="l00160"></a>00160 <span class="comment">/* nothing to do if the server directory does not exist */</span>
<a name="l00161"></a>00161 <span class="keywordflow">if</span> ((dir = opendir(dir_name)) == NULL) {
<a name="l00162"></a>00162 <span class="keywordflow">return</span>;
<a name="l00163"></a>00163 }
<a name="l00164"></a>00164
<a name="l00165"></a>00165 <span class="comment">/* unlink all the files in this directory, they are mine */</span>
<a name="l00166"></a>00166 <span class="keywordflow">while</span> ((dirent = readdir(dir)) != NULL) {
<a name="l00167"></a>00167
<a name="l00168"></a>00168 <span class="keywordtype">char</span> fullpath[JACK_PATH_MAX + 1];
<a name="l00169"></a>00169
<a name="l00170"></a>00170 <span class="keywordflow">if</span> ((strcmp(dirent->d_name, <span class="stringliteral">"."</span>) == 0) || (strcmp (dirent->d_name, <span class="stringliteral">".."</span>) == 0)) {
<a name="l00171"></a>00171 <span class="keywordflow">continue</span>;
<a name="l00172"></a>00172 }
<a name="l00173"></a>00173
<a name="l00174"></a>00174 snprintf(fullpath, <span class="keyword">sizeof</span>(fullpath), <span class="stringliteral">"%s/%s"</span>, dir_name, dirent->d_name);
<a name="l00175"></a>00175
<a name="l00176"></a>00176 <span class="keywordflow">if</span> (unlink(fullpath)) {
<a name="l00177"></a>00177 <a class="code" href="group__ServerControl.html#gac6448626e0b75fc6d9da1ccbdca0355e">jack_error</a>(<span class="stringliteral">"cannot unlink `%s' (%s)"</span>, fullpath, strerror(errno));
<a name="l00178"></a>00178 }
<a name="l00179"></a>00179 }
<a name="l00180"></a>00180
<a name="l00181"></a>00181 closedir(dir);
<a name="l00182"></a>00182
<a name="l00183"></a>00183 <span class="comment">/* now, delete the per-server subdirectory, itself */</span>
<a name="l00184"></a>00184 <span class="keywordflow">if</span> (rmdir(dir_name)) {
<a name="l00185"></a>00185 <a class="code" href="group__ServerControl.html#gac6448626e0b75fc6d9da1ccbdca0355e">jack_error</a>(<span class="stringliteral">"cannot remove `%s' (%s)"</span>, dir_name, strerror(errno));
<a name="l00186"></a>00186 }
<a name="l00187"></a>00187
<a name="l00188"></a>00188 <span class="comment">/* finally, delete the per-user subdirectory, if empty */</span>
<a name="l00189"></a>00189 <span class="keywordflow">if</span> (rmdir(UserDir())) {
<a name="l00190"></a>00190 <span class="keywordflow">if</span> (errno != ENOTEMPTY) {
<a name="l00191"></a>00191 <a class="code" href="group__ServerControl.html#gac6448626e0b75fc6d9da1ccbdca0355e">jack_error</a>(<span class="stringliteral">"cannot remove `%s' (%s)"</span>, UserDir(), strerror(errno));
<a name="l00192"></a>00192 }
<a name="l00193"></a>00193 }
<a name="l00194"></a>00194 }
<a name="l00195"></a>00195
<a name="l00196"></a>00196 <span class="keywordtype">int</span> JackTools::GetTmpdir()
<a name="l00197"></a>00197 {
<a name="l00198"></a>00198 FILE* in;
<a name="l00199"></a>00199 <span class="keywordtype">size_t</span> len;
<a name="l00200"></a>00200 <span class="keywordtype">char</span> buf[JACK_PATH_MAX + 2]; <span class="comment">/* allow tmpdir to live anywhere, plus newline, plus null */</span>
<a name="l00201"></a>00201
<a name="l00202"></a>00202 <span class="keywordflow">if</span> ((in = popen(<span class="stringliteral">"jackd -l"</span>, <span class="stringliteral">"r"</span>)) == NULL) {
<a name="l00203"></a>00203 <span class="keywordflow">return</span> -1;
<a name="l00204"></a>00204 }
<a name="l00205"></a>00205
<a name="l00206"></a>00206 <span class="keywordflow">if</span> (fgets(buf, <span class="keyword">sizeof</span>(buf), in) == NULL) {
<a name="l00207"></a>00207 pclose(in);
<a name="l00208"></a>00208 <span class="keywordflow">return</span> -1;
<a name="l00209"></a>00209 }
<a name="l00210"></a>00210
<a name="l00211"></a>00211 len = strlen(buf);
<a name="l00212"></a>00212
<a name="l00213"></a>00213 <span class="keywordflow">if</span> (buf[len - 1] != <span class="charliteral">'\n'</span>) {
<a name="l00214"></a>00214 <span class="comment">/* didn't get a whole line */</span>
<a name="l00215"></a>00215 pclose(in);
<a name="l00216"></a>00216 <span class="keywordflow">return</span> -1;
<a name="l00217"></a>00217 }
<a name="l00218"></a>00218
<a name="l00219"></a>00219 jack_tmpdir = (<span class="keywordtype">char</span> *)malloc(len);
<a name="l00220"></a>00220 memcpy(jack_tmpdir, buf, len - 1);
<a name="l00221"></a>00221 jack_tmpdir[len - 1] = <span class="charliteral">'\0'</span>;
<a name="l00222"></a>00222
<a name="l00223"></a>00223 pclose(in);
<a name="l00224"></a>00224 <span class="keywordflow">return</span> 0;
<a name="l00225"></a>00225 }
<a name="l00226"></a>00226 <span class="preprocessor">#endif</span>
<a name="l00227"></a>00227 <span class="preprocessor"></span>
<a name="l00228"></a>00228 <span class="keywordtype">void</span> JackTools::RewriteName(<span class="keyword">const</span> <span class="keywordtype">char</span>* name, <span class="keywordtype">char</span>* new_name)
<a name="l00229"></a>00229 {
<a name="l00230"></a>00230 <span class="keywordtype">size_t</span> i;
<a name="l00231"></a>00231 <span class="keywordflow">for</span> (i = 0; i < strlen(name); i++) {
<a name="l00232"></a>00232 <span class="keywordflow">if</span> ((name[i] == <span class="charliteral">'/'</span>) || (name[i] == <span class="charliteral">'\\'</span>))
<a name="l00233"></a>00233 new_name[i] = <span class="charliteral">'_'</span>;
<a name="l00234"></a>00234 <span class="keywordflow">else</span>
<a name="l00235"></a>00235 new_name[i] = name[i];
<a name="l00236"></a>00236 }
<a name="l00237"></a>00237 new_name[i] = <span class="charliteral">'\0'</span>;
<a name="l00238"></a>00238 }
<a name="l00239"></a>00239
<a name="l00240"></a>00240 <span class="preprocessor">#ifdef WIN32</span>
<a name="l00241"></a>00241 <span class="preprocessor"></span>
<a name="l00242"></a>00242 <span class="keywordtype">void</span> BuildClientPath(<span class="keywordtype">char</span>* path_to_so, <span class="keywordtype">int</span> path_len, <span class="keyword">const</span> <span class="keywordtype">char</span>* so_name)
<a name="l00243"></a>00243 {
<a name="l00244"></a>00244 snprintf(path_to_so, path_len, ADDON_DIR <span class="stringliteral">"/%s.dll"</span>, so_name);
<a name="l00245"></a>00245 }
<a name="l00246"></a>00246
<a name="l00247"></a>00247 <span class="keywordtype">void</span> PrintLoadError(<span class="keyword">const</span> <span class="keywordtype">char</span>* so_name)
<a name="l00248"></a>00248 {
<a name="l00249"></a>00249 <span class="comment">// Retrieve the system error message for the last-error code</span>
<a name="l00250"></a>00250 LPVOID lpMsgBuf;
<a name="l00251"></a>00251 LPVOID lpDisplayBuf;
<a name="l00252"></a>00252 DWORD dw = GetLastError();
<a name="l00253"></a>00253
<a name="l00254"></a>00254 FormatMessage(
<a name="l00255"></a>00255 FORMAT_MESSAGE_ALLOCATE_BUFFER |
<a name="l00256"></a>00256 FORMAT_MESSAGE_FROM_SYSTEM |
<a name="l00257"></a>00257 FORMAT_MESSAGE_IGNORE_INSERTS,
<a name="l00258"></a>00258 NULL,
<a name="l00259"></a>00259 dw,
<a name="l00260"></a>00260 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
<a name="l00261"></a>00261 (LPTSTR) &lpMsgBuf,
<a name="l00262"></a>00262 0, NULL );
<a name="l00263"></a>00263
<a name="l00264"></a>00264 <span class="comment">// Display the error message and exit the process</span>
<a name="l00265"></a>00265 lpDisplayBuf = (LPVOID)LocalAlloc(LMEM_ZEROINIT,
<a name="l00266"></a>00266 (lstrlen((LPCTSTR)lpMsgBuf) + lstrlen((LPCTSTR)so_name) + 40) * <span class="keyword">sizeof</span>(TCHAR));
<a name="l00267"></a>00267 _snprintf((LPTSTR)lpDisplayBuf, LocalSize(lpDisplayBuf) / <span class="keyword">sizeof</span>(TCHAR),
<a name="l00268"></a>00268 TEXT(<span class="stringliteral">"error loading %s err = %s"</span>), so_name, lpMsgBuf);
<a name="l00269"></a>00269
<a name="l00270"></a>00270 <a class="code" href="group__ServerControl.html#gac6448626e0b75fc6d9da1ccbdca0355e">jack_error</a>((LPCTSTR)lpDisplayBuf);
<a name="l00271"></a>00271
<a name="l00272"></a>00272 LocalFree(lpMsgBuf);
<a name="l00273"></a>00273 LocalFree(lpDisplayBuf);
<a name="l00274"></a>00274 }
<a name="l00275"></a>00275
<a name="l00276"></a>00276 <span class="preprocessor">#else</span>
<a name="l00277"></a>00277 <span class="preprocessor"></span>
<a name="l00278"></a>00278 <span class="keywordtype">void</span> PrintLoadError(<span class="keyword">const</span> <span class="keywordtype">char</span>* so_name)
<a name="l00279"></a>00279 {
<a name="l00280"></a>00280 <a class="code" href="group__ServerControl.html#ga35f69faaee3bb9b958ed8c9a5f62246c">jack_log</a>(<span class="stringliteral">"error loading %s err = %s"</span>, so_name, dlerror());
<a name="l00281"></a>00281 }
<a name="l00282"></a>00282
<a name="l00283"></a>00283 <span class="keywordtype">void</span> BuildClientPath(<span class="keywordtype">char</span>* path_to_so, <span class="keywordtype">int</span> path_len, <span class="keyword">const</span> <span class="keywordtype">char</span>* so_name)
<a name="l00284"></a>00284 {
<a name="l00285"></a>00285 <span class="keyword">const</span> <span class="keywordtype">char</span>* internal_dir;
<a name="l00286"></a>00286 <span class="keywordflow">if</span> ((internal_dir = getenv(<span class="stringliteral">"JACK_INTERNAL_DIR"</span>)) == 0) {
<a name="l00287"></a>00287 <span class="keywordflow">if</span> ((internal_dir = getenv(<span class="stringliteral">"JACK_DRIVER_DIR"</span>)) == 0) {
<a name="l00288"></a>00288 internal_dir = ADDON_DIR;
<a name="l00289"></a>00289 }
<a name="l00290"></a>00290 }
<a name="l00291"></a>00291
<a name="l00292"></a>00292 snprintf(path_to_so, path_len, <span class="stringliteral">"%s/%s.so"</span>, internal_dir, so_name);
<a name="l00293"></a>00293 }
<a name="l00294"></a>00294
<a name="l00295"></a>00295 <span class="preprocessor">#endif</span>
<a name="l00296"></a>00296 <span class="preprocessor"></span>
<a name="l00297"></a>00297 } <span class="comment">// end of namespace</span>
<a name="l00298"></a>00298
</pre></div></div>
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