#include "gnunet_configuration_lib.h"
#include "gnunet_scheduler_lib.h"
+/**
+ * Process information (OS-dependent)
+ */
+struct GNUNET_OS_Process;
+
/**
* Possible installation paths to request
* the one of the overall GNUnet installation (in case they
* are different).
*/
- GNUNET_OS_IPK_SELF_PREFIX
+ GNUNET_OS_IPK_SELF_PREFIX,
+
+ /**
+ * Return the prefix of the path with application icons.
+ */
+ GNUNET_OS_IPK_ICONDIR
};
proc, void *proc_cls);
/**
- * Get the current CPU load.
+ * @brief Get maximum string length returned by gethostname()
+ */
+#if HAVE_SYSCONF && defined(_SC_HOST_NAME_MAX)
+#define GNUNET_OS_get_hostname_max_length() ({ int __sc_tmp = sysconf(_SC_HOST_NAME_MAX); __sc_tmp <= 0 ? 255 : __sc_tmp; })
+#elif defined(HOST_NAME_MAX)
+#define GNUNET_OS_get_hostname_max_length() HOST_NAME_MAX
+#else
+#define GNUNET_OS_get_hostname_max_length() 255
+#endif
+
+
+/**
+ * Get process structure for current process
+ *
+ * The pointer it returns points to static memory location and must not be
+ * deallocated/closed
+ *
+ * @return pointer to the process sturcutre for this process
+ */
+struct GNUNET_OS_Process *GNUNET_OS_process_current (void);
+
+
+/**
+ * Sends sig to the process
*
- * @param cfg to determine acceptable load level (LOAD::MAXCPULOAD)
- * @return -1 on error, otherwise load value (between 0 and 100,
- * (100 is equivalent to full load for one CPU)
+ * @param proc pointer to process structure
+ * @param sig signal
+ * @return 0 on success, -1 on error
*/
-int GNUNET_OS_load_cpu_get (const struct GNUNET_CONFIGURATION_Handle *cfg);
+int GNUNET_OS_process_kill (struct GNUNET_OS_Process *proc, int sig);
/**
- * Get the current IO load.
+ * Cleans up process structure contents (OS-dependent) and deallocates it
*
- * @param cfg to determine acceptable load level (LOAD::MAXIOLOAD)
- * @return -1 on error, otherwise load value (between 0 and 100,
- * 100 means that we spend all of our cycles waiting for
- * the disk)
+ * @param proc pointer to process structure
*/
-int GNUNET_OS_load_disk_get (const struct GNUNET_CONFIGURATION_Handle *cfg);
+void GNUNET_OS_process_close (struct GNUNET_OS_Process *proc);
+/**
+ * Get the pid of the process in question
+ *
+ * @param proc the process to get the pid of
+ *
+ * @return the current process id
+ */
+pid_t
+GNUNET_OS_process_get_pid (struct GNUNET_OS_Process *proc);
/**
* Set process priority
*
- * @param proc id of the process
+ * @param proc pointer to process structure
* @param prio priority value
* @return GNUNET_OK on success, GNUNET_SYSERR on error
*/
-int GNUNET_OS_set_process_priority (pid_t proc,
+int GNUNET_OS_set_process_priority (struct GNUNET_OS_Process *proc,
enum GNUNET_SCHEDULER_Priority prio);
/**
* Start a process.
*
+ * @param pipe_stdin pipe to use to send input to child process (or NULL)
+ * @param pipe_stdout pipe to use to get output from child process (or NULL)
* @param filename name of the binary
* @param ... NULL-terminated list of arguments to the process
- * @return process ID of the new process, -1 on error
+ * @return pointer to process structure of the new process, NULL on error
*/
-pid_t GNUNET_OS_start_process (const char *filename, ...);
+struct GNUNET_OS_Process *
+GNUNET_OS_start_process (struct GNUNET_DISK_PipeHandle *pipe_stdin,
+ struct GNUNET_DISK_PipeHandle *pipe_stdout,
+ const char *filename, ...);
/**
* Start a process.
*
+ * @param lsocks array of listen sockets to dup systemd-style (or NULL);
+ * must be NULL on platforms where dup is not supported
* @param filename name of the binary
* @param argv NULL-terminated list of arguments to the process,
* including the process name as the first argument
- * @return process ID of the new process, -1 on error
+ * @return pointer to process structure of the new process, NULL on error
*/
-pid_t GNUNET_OS_start_process_v (const char *filename, char *const argv[]);
+struct GNUNET_OS_Process *
+GNUNET_OS_start_process_v (const int *lsocks, const char *filename,
+ char *const argv[]);
/**
* Retrieve the status of a process
- * @param proc process ID
+ * @param proc pointer to process structure
* @param type status type
* @param code return code/signal number
* @return GNUNET_OK on success, GNUNET_NO if the process is still running, GNUNET_SYSERR otherwise
*/
-int GNUNET_OS_process_status (pid_t proc, enum GNUNET_OS_ProcessStatusType *type,
- unsigned long *code);
+int GNUNET_OS_process_status (struct GNUNET_OS_Process *proc,
+ enum GNUNET_OS_ProcessStatusType *type, unsigned long *code);
/**
* Wait for a process
- * @param proc process ID to wait for
+ * @param proc pointer to process structure of the process to wait for
* @return GNUNET_OK on success, GNUNET_SYSERR otherwise
*/
-int GNUNET_OS_process_wait (pid_t proc);
+int GNUNET_OS_process_wait (struct GNUNET_OS_Process *proc);
+/**
+ * Connects this process to its parent via pipe
+ */
+void
+GNUNET_OS_install_parent_control_handler (void *cls,
+ const struct
+ GNUNET_SCHEDULER_TaskContext * tc);
+
#if 0 /* keep Emacsens' auto-indent happy */
{
#endif