X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=src%2Finclude%2Fgnunet_os_lib.h;h=285dfb68ded7af2577d27ac6ea8515ab4a6ee259;hb=6e626937fd5133188d2bd06f280a1b889219eef2;hp=bb0840029e546bb24fe786d99c32121b69d0d2c0;hpb=b23f7bcde58fdada9170f16af39ab1e84f4c3a68;p=oweals%2Fgnunet.git diff --git a/src/include/gnunet_os_lib.h b/src/include/gnunet_os_lib.h index bb0840029..285dfb68d 100644 --- a/src/include/gnunet_os_lib.h +++ b/src/include/gnunet_os_lib.h @@ -1,27 +1,24 @@ /* This file is part of GNUnet. - Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2011 Christian Grothoff (and other contributing authors) + Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2011 GNUnet e.V. - GNUnet is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published - by the Free Software Foundation; either version 3, or (at your - option) any later version. + GNUnet is free software: you can redistribute it and/or modify it + under the terms of the GNU Affero General Public License as published + by the Free Software Foundation, either version 3 of the License, + or (at your option) any later version. GNUnet is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. + Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with this program. If not, see . - You should have received a copy of the GNU General Public License - along with GNUnet; see the file COPYING. If not, write to the - Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, - Boston, MA 02110-1301, USA. + SPDX-License-Identifier: AGPL3.0-or-later */ /** - * @file - * Low level process routines - * * @author Christian Grothoff * @author Krista Bennett * @author Gerd Knorr @@ -29,6 +26,12 @@ * @author Tzvetan Horozov * @author Milan * + * @file + * Low level process routines + * + * @defgroup os OS library + * Low level process routines. + * * This code manages child processes. We can communicate with child * processes using signals. Because signals are not supported on W32 * and Java (at least not nicely), we can alternatively use a pipe @@ -38,6 +41,8 @@ * termination via signals, and not as a replacement for SIGKILL. * Thus using pipes to communicate signals should only be enabled if * the child is a Java process OR if we are on Windoze. + * + * @{ */ #ifndef GNUNET_OS_LIB_H @@ -194,6 +199,100 @@ enum GNUNET_OS_ProcessStatusType }; +/** + * Project-specific data used to help the OS subsystem + * find installation paths. + */ +struct GNUNET_OS_ProjectData +{ + /** + * Name of a library that is installed in the "lib/" directory of + * the project, such as "libgnunetutil". Used to locate the + * installation by scanning dependencies of the current process. + */ + const char *libname; + + /** + * Name of the project that is used in the "libexec" prefix, For + * example, "gnunet". Certain helper binaries are then expected to + * be installed in "$PREFIX/libexec/gnunet/" and resources in + * "$PREFIX/share/gnunet/". + */ + const char *project_dirname; + + /** + * Name of a project-specific binary that should be in "$PREFIX/bin/". + * Used to determine installation path from $PATH variable. + * For example "gnunet-arm". On W32, ".exe" should be omitted. + */ + const char *binary_name; + + /** + * Name of an environment variable that can be used to override + * installation path detection, for example "GNUNET_PREFIX". + */ + const char *env_varname; + + /** + * Alternative name of an environment variable that can be used to + * override installation path detection, if "env_varname" is not + * set. Again, for example, "GNUNET_PREFIX". + */ + const char *env_varname_alt; + + /** + * Name of an environment variable that can be used to override + * the location from which default configuration files are loaded + * from, for example "GNUNET_BASE_CONFIG". + */ + const char *base_config_varname; + + /** + * E-mail address for reporting bugs. + */ + const char *bug_email; + + /** + * Project homepage. + */ + const char *homepage; + + /** + * Configuration file name (in $XDG_CONFIG_HOME) to use. + */ + const char *config_file; + + /** + * Configuration file name to use (if $XDG_CONFIG_HOME is not set). + */ + const char *user_config_file; + +}; + + +/** + * Return default project data used by 'libgnunetutil' for GNUnet. + */ +const struct GNUNET_OS_ProjectData * +GNUNET_OS_project_data_default (void); + + +/** + * @return current (actual) project data. + */ +const struct GNUNET_OS_ProjectData * +GNUNET_OS_project_data_get (void); + + +/** + * Setup OS subsystem with project data. + * + * @param pd project data used to determine paths. + */ +void +GNUNET_OS_init (const struct GNUNET_OS_ProjectData *pd); + + /** * Get the path to a specific GNUnet installation directory or, with * #GNUNET_OS_IPK_SELF_PREFIX, the current running apps installation @@ -282,7 +381,8 @@ GNUNET_OS_process_current (void); * @return 0 on success, -1 on error */ int -GNUNET_OS_process_kill (struct GNUNET_OS_Process *proc, int sig); +GNUNET_OS_process_kill (struct GNUNET_OS_Process *proc, + int sig); /** @@ -425,7 +525,8 @@ struct GNUNET_OS_CommandHandle; * @param cls closure * @param line line of output from a command, NULL for the end */ -typedef void (*GNUNET_OS_LineProcessor) (void *cls, const char *line); +typedef void +(*GNUNET_OS_LineProcessor) (void *cls, const char *line); /** @@ -449,13 +550,15 @@ GNUNET_OS_command_stop (struct GNUNET_OS_CommandHandle *cmd); * @return NULL on error */ struct GNUNET_OS_CommandHandle * -GNUNET_OS_command_run (GNUNET_OS_LineProcessor proc, void *proc_cls, - struct GNUNET_TIME_Relative timeout, const char *binary, +GNUNET_OS_command_run (GNUNET_OS_LineProcessor proc, + void *proc_cls, + struct GNUNET_TIME_Relative timeout, + const char *binary, ...); /** - * Retrieve the status of a process, waiting on him if dead. + * Retrieve the status of a process, waiting on it if dead. * Nonblocking version. * * @param proc pointer to process structure @@ -483,6 +586,22 @@ int GNUNET_OS_process_wait (struct GNUNET_OS_Process *proc); + +/** + * Retrieve the status of a process, waiting on it if dead. + * Blocking version. + * + * @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_wait_status (struct GNUNET_OS_Process *proc, + enum GNUNET_OS_ProcessStatusType *type, + unsigned long *code); + + /** * Connects this process to its parent via pipe; * essentially, the parent control handler will read signal numbers @@ -490,12 +609,9 @@ GNUNET_OS_process_wait (struct GNUNET_OS_Process *proc); * variable) and raise those signals. * * @param cls closure (unused) - * @param tc scheduler context (unused) */ void -GNUNET_OS_install_parent_control_handler (void *cls, - const struct - GNUNET_SCHEDULER_TaskContext *tc); +GNUNET_OS_install_parent_control_handler (void *cls); /** @@ -528,7 +644,9 @@ GNUNET_OS_check_helper_binary (const char *binary, } #endif - /* ifndef GNUNET_OS_LIB_H */ #endif + +/** @} */ /* end of group */ + /* end of gnunet_os_lib.h */