xref: /aoo42x/main/sal/inc/osl/process.h (revision cdf0e10c)
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27 
28 
29 #ifndef _OSL_PROCESS_H_
30 #define _OSL_PROCESS_H_
31 
32 #include <rtl/ustring.h>
33 #include <rtl/textenc.h>
34 #include <rtl/locale.h>
35 
36 #include <osl/time.h>
37 #include <osl/file.h>
38 #include <osl/pipe.h>
39 #include <osl/socket.h>
40 #include <osl/security.h>
41 
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45 
46 
47 typedef sal_Int32 oslProcessOption;
48 #define		osl_Process_WAIT       0x0001    /* wait for completion */
49 #define		osl_Process_SEARCHPATH 0x0002    /* search path for executable */
50 #define		osl_Process_DETACHED   0x0004    /* run detached */
51 #define		osl_Process_NORMAL     0x0000    /* run in normal window */
52 #define		osl_Process_HIDDEN     0x0010    /* run hidden */
53 #define		osl_Process_MINIMIZED  0x0020    /* run in minimized window */
54 #define		osl_Process_MAXIMIZED  0x0040    /* run in maximized window */
55 #define		osl_Process_FULLSCREEN 0x0080    /* run in fullscreen window */
56 
57 typedef sal_Int32 oslProcessData;
58 
59 /* defines for osl_getProcessInfo , can be OR'ed */
60 #define		osl_Process_IDENTIFIER  0x0001   /* retrieves the process identifier   */
61 #define		osl_Process_EXITCODE	0x0002   /* retrieves exit code of the process */
62 #define		osl_Process_CPUTIMES  	0x0004   /* retrieves used cpu time            */
63 #define		osl_Process_HEAPUSAGE	0x0008   /* retrieves the used size of heap    */
64 
65 typedef	sal_uInt32 oslProcessIdentifier;
66 typedef	sal_uInt32 oslProcessExitCode;
67 
68 typedef enum {
69     osl_Process_E_None,					/* no error */
70     osl_Process_E_NotFound,				/* image not found */
71     osl_Process_E_TimedOut,				/* timout occured */
72     osl_Process_E_NoPermission,	  	  	/* permission denied */
73     osl_Process_E_Unknown,			  	/* unknown error */
74     osl_Process_E_InvalidError,			/* unmapped error */
75 	osl_Process_E_FORCE_EQUAL_SIZE = SAL_MAX_ENUM
76 } oslProcessError;
77 
78 typedef enum {
79     osl_Process_TypeNone,	  	/* no descriptor */
80     osl_Process_TypeSocket,		/* socket */
81     osl_Process_TypeFile,		/* file   */
82 	osl_Process_TypePipe,       /* pipe   */
83 	osl_Process_FORCE_EQUAL_SIZE = SAL_MAX_ENUM
84 } oslDescriptorType;
85 
86 typedef sal_Int32 oslDescriptorFlag;
87 #define	osl_Process_DFNONE       0x0000
88 #define	osl_Process_DFWAIT       0x0001
89 
90 #ifdef SAL_W32
91 #	pragma pack(push, 8)
92 #elif defined(SAL_OS2)
93 #	pragma pack(push, 4)
94 #endif
95 
96 typedef struct {
97     sal_uInt32				Size;
98     oslProcessData			Fields;
99     oslProcessIdentifier	Ident;
100     oslProcessExitCode		Code;
101     TimeValue				UserTime;
102     TimeValue				SystemTime;
103     sal_uInt32				HeapUsage;
104 } oslProcessInfo;
105 
106 #if defined( SAL_W32) ||  defined(SAL_OS2)
107 #	pragma pack(pop)
108 #endif
109 
110 /** Process handle
111 
112 	@see osl_executeProcess
113 	@see osl_terminateProcess
114 	@see osl_freeProcessHandle
115     @see osl_getProcessInfo
116 	@see osl_joinProcess
117 */
118 typedef void* oslProcess;
119 
120 /** Execute a process.
121 
122     Executes the program image provided in strImageName in a new process.
123 
124     @param ustrImageName
125     [in] The file URL of the executable to be started.
126     Can be NULL in this case the file URL of the executable must be the first element
127     in ustrArguments.
128 
129 	@param ustrArguments
130 	[in] An array of argument strings. Can be NULL if strImageName is not NULL.
131 	If strImageName is NULL it is expected that the first element contains
132 	the file URL of the executable to start.
133 
134     @param nArguments
135     [in] The number of arguments provided. If this number is 0 strArguments will be ignored.
136 
137 	@param Options
138 	[in] A combination of int-constants to describe the mode of execution.
139 
140 	@param Security
141 	[in] The user and his rights for which the process is started. May be NULL in which case
142 	the process will be started in the context of the current user.
143 
144 	@param ustrDirectory
145 	[in] The file URL of the working directory of the new proces. If the specified directory
146 	does not exist or is inaccessible the working directory of the newly created process
147 	is undefined. If this parameter is NULL or the caller provides an empty string the
148 	new process will have the same current working directory as the calling process.
149 
150 	@param ustrEnviroments
151 	[in] An array of strings describing environment variables that should be merged into the
152 	environment of the new process. Each string has to be in the form "variable=value".
153 	This parameter can be NULL in which case the new process gets the same environment
154 	as the parent process.
155 
156     @param nEnvironmentVars
157     [in] The number of environment variables to set.
158 
159 	@param pProcess
160 	[out] Pointer to a oslProcess variable, wich receives the handle of the newly created process.
161 	This parameter must not be NULL.
162 
163 	@return
164 	<dl>
165 	<dt>osl_Process_E_None</dt>
166 	<dd>on success</dd>
167 	<dt>osl_Process_E_NotFound</dt>
168 	<dd>if the specified executable could not be found</dd>
169 	<dt>osl_Process_E_InvalidError</dt>
170 	<dd>if invalid parameters will be detected</dd>
171 	<dt>osl_Process_E_Unknown</dt>
172 	<dd>if arbitrary other errors occur</dd>
173 	</dl>
174 
175 	@see oslProcessOption
176 	@see osl_executeProcess_WithRedirectedIO
177 	@see osl_freeProcessHandle
178 	@see osl_loginUser
179 */
180 oslProcessError SAL_CALL osl_executeProcess(
181     rtl_uString* ustrImageName,
182 	rtl_uString* ustrArguments[],
183     sal_uInt32  nArguments,
184 	oslProcessOption Options,
185 	oslSecurity Security,
186 	rtl_uString* ustrDirectory,
187 	rtl_uString* ustrEnvironments[],
188     sal_uInt32 nEnvironmentVars,
189 	oslProcess* pProcess);
190 
191 
192 /** Execute a process and redirect child process standard IO.
193 
194 	@param ustrImageName
195     [in] The file URL of the executable to be started.
196     Can be NULL in this case the file URL of the executable must be the first element
197     in ustrArguments.
198 
199 	@param ustrArguments
200 	[in] An array of argument strings. Can be NULL if strImageName is not NULL.
201 	If strImageName is NULL it is expected that the first element contains
202 	the file URL of the executable to start.
203 
204     @param nArguments
205     [in] The number of arguments provided. If this number is 0 strArguments will be ignored.
206 
207 	@param Options
208 	[in] A combination of int-constants to describe the mode of execution.
209 
210 	@param Security
211 	[in] The user and his rights for which the process is started. May be NULL in which case
212 	the process will be started in the context of the current user.
213 
214 	@param ustrDirectory
215 	[in] The file URL of the working directory of the new proces. If the specified directory
216 	does not exist or is inaccessible the working directory of the newly created process
217 	is undefined. If this parameter is NULL or the caller provides an empty string the
218 	new process will have the same current working directory as the calling process.
219 
220 	@param ustrEnviroments
221 	[in] An array of strings describing environment variables that should be merged into the
222 	environment of the new process. Each string has to be in the form "variable=value".
223 	This parameter can be NULL in which case the new process gets the same environment
224 	as the parent process.
225 
226     @param nEnvironmentVars
227     [in] The number of environment variables to set.
228 
229 	@param pProcess
230 	[out] Pointer to a oslProcess variable, wich receives the handle of the newly created process.
231 	This parameter must not be NULL.
232 
233 	@param pChildInputWrite
234 	[in] Pointer to a oslFileHandle variable that receives the handle which can be used to write
235 	to the child process standard input device. The returned handle is not random accessible.
236 	The handle has to be closed with osl_closeFile if no longer used. This parameter can be NULL.
237 
238 	@param pChildOutputRead
239 	[in] Pointer to a oslFileHandle variable that receives the handle which can be used to read from
240 	the child process standard output device. The returned handle is not random accessible.
241 	The Handle has to be closed with osl_closeFile if no longer used. This parameter can be NULL.
242 
243 	@param pChildErrorRead
244 	[in] Pointer to a oslFileHandle variable that receives the handle which can be used to read from
245 	the child process standard error device. The returned handle is not random accessible.
246 	The Handle has to be closed with osl_closeFile if no longer used. This parameter can be NULL.
247 
248 	@return
249 	<dl>
250 	<dt>osl_Process_E_None</dt>
251 	<dd>on success</dd>
252 	<dt>osl_Process_E_NotFound</dt>
253 	<dd>if the specified executable could not be found</dd>
254 	<dt>osl_Process_E_InvalidError</dt>
255 	<dd>if invalid parameters will be detected</dd>
256 	<dt>osl_Process_E_Unknown</dt>
257 	<dd>if arbitrary other errors occur</dd>
258 	</dl>
259 
260 	@see oslProcessOption
261 	@see osl_executeProcess
262 	@see osl_freeProcessHandle
263 	@see osl_loginUser
264 	@see osl_closeFile
265 */
266 oslProcessError SAL_CALL osl_executeProcess_WithRedirectedIO(
267     rtl_uString* strImageName,
268 	rtl_uString* ustrArguments[],
269     sal_uInt32 nArguments,
270 	oslProcessOption Options,
271 	oslSecurity Security,
272 	rtl_uString* ustrDirectory,
273 	rtl_uString* ustrEnvironments[],
274     sal_uInt32 nEnvironmentVars,
275 	oslProcess* pProcess,
276 	oslFileHandle* pChildInputWrite,
277 	oslFileHandle* pChildOutputRead,
278 	oslFileHandle* pChildErrorRead);
279 
280 /** Terminate a process
281     @param Process [in] the handle of the process to be terminated
282 
283     @see osl_executeProcess
284     @see osl_getProcess
285     @see osl_joinProcess
286  */
287 oslProcessError SAL_CALL osl_terminateProcess(oslProcess Process);
288 
289 
290 /** @deprecated
291     Retrieve the process handle of a process identifier
292     @param Ident [in] a process identifier
293 
294     @return the process handle on success, NULL in all other cases
295  */
296 oslProcess SAL_CALL osl_getProcess(oslProcessIdentifier Ident);
297 
298 
299 /** Free the specified proces-handle.
300 	@param Process [in]
301 */
302 void SAL_CALL osl_freeProcessHandle(oslProcess Process);
303 
304 
305 /** Wait for completation of the specified childprocess.
306 	@param Process [in]
307 	@return ols_Process_E_None
308 	@see osl_executeProcess
309 */
310 oslProcessError SAL_CALL osl_joinProcess(oslProcess Process);
311 
312 /** Wait with a timeout for the completion of the specified child
313     process.
314 
315     @param Process [in]
316     A process identifier.
317 
318     @param pTimeout [in]
319     A timeout value or NULL for infinite waiting.
320 	The unit of resolution is second.
321 
322     @return
323     osl_Process_E_None on success
324     osl_Process_E_TimedOut waiting for the child process timed out
325     osl_Process_E_Unknown an error occured or the parameter are invalid
326 
327     @see osl_executeProcess
328 */
329 oslProcessError SAL_CALL osl_joinProcessWithTimeout(oslProcess Process, const TimeValue* pTimeout);
330 
331 /** Retrieves information about a Process
332     @param Process [in] the process handle of the process
333     @param Field   [in] the information which is to be retrieved
334                         this can be one or more of
335                         osl_Process_IDENTIFIER
336                         osl_Process_EXITCODE
337                         osl_Process_CPUTIMES
338                         osl_Process_HEAPUSAGE
339     @param pInfo  [out] a pointer to a vaid oslProcessInfo structure.
340                         the Size field has to be initialized with the size
341                         of the oslProcessInfo structure.
342                         on success the the Field member holds the (or'ed)
343                         retrieved valid information fields.
344     @return osl_Process_E_None on success, osl_Process_E_Unknown on failure.
345  */
346 oslProcessError SAL_CALL osl_getProcessInfo(oslProcess Process, oslProcessData Fields,
347                                    oslProcessInfo* pInfo);
348 
349 /** Get the filename of the executable.
350 	@param strFile [out] the string that receives the executable file path.
351 	@return osl_Process_E_None or does not return.
352 	@see osl_executeProcess
353 */
354 oslProcessError SAL_CALL osl_getExecutableFile(rtl_uString **strFile);
355 
356 /** @return the number of commandline arguments passed to the main-function of
357     this process
358     @see osl_getCommandArg
359 */
360 sal_uInt32 SAL_CALL osl_getCommandArgCount(void);
361 
362 /** Get the nArg-th command-line argument passed to the main-function of this process.
363     @param nArg [in] The number of the argument to return.
364 	@param strCommandArg [out] The string receives the nArg-th command-line argument.
365 	@return osl_Process_E_None or does not return.
366 	@see osl_executeProcess
367 */
368 oslProcessError SAL_CALL osl_getCommandArg(sal_uInt32 nArg, rtl_uString **strCommandArg);
369 
370 /** Set the command-line arguments as passed to the main-function of this process.
371 
372     Depricated: This function is only for internal use. Passing the args from main will
373 	only work for Unix, on Windows there's no effect, the full command line will automtically
374 	be taken. This is due to Windows 9x/ME limitation that don't allow UTF-16 wmain to provide
375 	a osl_setCommandArgsU( int argc, sal_Unicode **argv );
376 
377 	@param argc [in] The number of elements in the argv array.
378 	@param argv [in] The array of command-line arguments.
379 	@see osl_getExecutableFile
380 	@see osl_getCommandArgCount
381 	@see osl_getCommandArg
382 */
383 void SAL_CALL osl_setCommandArgs (int argc, char **argv);
384 
385 /** Get the value of one enviroment variable.
386 	@param strVar [in] denotes the name of the variable to get.
387 	@param strValue [out] string that receives the value of environment variable.
388 */
389 oslProcessError SAL_CALL osl_getEnvironment(rtl_uString *strVar, rtl_uString **strValue);
390 
391 /** Set the value of one enviroment variable.
392 	@param strVar [in] denotes the name of the variable to set.
393 	@param strValue [in] string of the new value of environment variable.
394 
395 	@since UDK 3.2.13
396 */
397 oslProcessError SAL_CALL osl_setEnvironment(rtl_uString *strVar, rtl_uString *strValue);
398 
399 /** Unsets the value of one enviroment variable.
400 	@param strVar [in] denotes the name of the variable to unset.
401 
402 	@since UDK 3.2.13
403 */
404 oslProcessError SAL_CALL osl_clearEnvironment(rtl_uString *strVar);
405 
406 /** Get the working directory of the current process as a file URL.
407 
408 	The file URL is encoded as common for the OSL file API.
409 	@param	pustrWorkingDir [out] string that receives the working directory file URL.
410 */
411 
412 oslProcessError SAL_CALL osl_getProcessWorkingDir( rtl_uString **pustrWorkingDir );
413 
414 /** Get the locale the process is currently running in.
415 
416 	The unix implementation caches the value it returns, so if you have to change the locale
417     your are running in, you will have to use osl_setProcessLocale therefor.
418 
419 	@param	ppLocale [out] a pointer that receives the currently selected locale structure
420     @see osl_setProcessLocale
421 */
422 
423 oslProcessError SAL_CALL osl_getProcessLocale( rtl_Locale ** ppLocale );
424 
425 /** Change the locale of the process.
426 
427 	@param	pLocale [in] a pointer to the locale to be set
428     @see osl_getProcessLocale
429 */
430 
431 oslProcessError SAL_CALL osl_setProcessLocale( rtl_Locale * pLocale );
432 
433 
434 sal_Bool SAL_CALL osl_sendResourcePipe(oslPipe Pipe, oslSocket Socket);
435 
436 oslSocket SAL_CALL osl_receiveResourcePipe(oslPipe Pipe);
437 
438 #ifdef __cplusplus
439 }
440 #endif
441 
442 #endif    /* _OSL_PROCESS_H_ */
443 
444