NEWS: Refactoring components under src/ into lib/, plugin/, cli/ and service/

This also includes a necessary API refactoring of crypto from IDENTITY
to UTIL.

1 files changed, 0 insertions, 240 deletions

diff --git a/src/util/child_management.c b/src/util/child_management.c
deleted file mode 100644
index e78ebac9f..000000000
--- a/src/util/child_management.c
+++ /dev/null
@@ -1,240 +0,0 @@
-/*
-      This file is part of GNUnet
-      Copyright (C) 2021-2023 GNUnet e.V.
-
-      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
-      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 <http://www.gnu.org/licenses/>.
-
-     SPDX-License-Identifier: AGPL3.0-or-later
- */
-
-/**
- * @file util/child_management.c
- * @brief Handling of child processes in GNUnet.
- * @author Christian Grothoff (ANASTASIS)
- * @author Dominik Meister (ANASTASIS)
- * @author t3sserakt
- */
-
-#include "platform.h"
-#include "gnunet_util_lib.h"
-
-/**
- * Generic logging shortcut
- */
-#define LOG(kind, ...) GNUNET_log (kind, __VA_ARGS__)
-
-
-/**
- * Struct which defines a Child Wait handle
- */
-struct GNUNET_ChildWaitHandle
-{
-  /**
-   * Linked list to the next child
-   */
-  struct GNUNET_ChildWaitHandle *next;
-  /**
-   * Linked list to the previous child
-   */
-  struct GNUNET_ChildWaitHandle *prev;
-  /**
-   * Child process which is managed
-   */
-  struct GNUNET_OS_Process *proc;
-  /**
-   * Callback which is called upon completion/death of the child task
-   */
-  GNUNET_ChildCompletedCallback cb;
-  /**
-   * Closure for the handle
-   */
-  void *cb_cls;
-};
-
-
-/**
- * Pipe used to communicate shutdown via signal.
- */
-static struct GNUNET_DISK_PipeHandle *sigpipe;
-
-static struct GNUNET_SIGNAL_Context *shc_chld;
-
-static struct GNUNET_SCHEDULER_Task *sig_task;
-
-static struct GNUNET_ChildWaitHandle *cwh_head;
-
-static struct GNUNET_ChildWaitHandle *cwh_tail;
-
-/**
- * Task triggered whenever we receive a SIGCHLD (child
- * process died) or when user presses CTRL-C.
- *
- * @param cls closure, NULL
- */
-static void
-maint_child_death (void *cls)
-{
-  char buf[16];
-  const struct GNUNET_DISK_FileHandle *pr;
-  struct GNUNET_ChildWaitHandle *nxt;
-
-  (void) cls;
-  sig_task = NULL;
-  /* drain pipe */
-  pr = GNUNET_DISK_pipe_handle (sigpipe,
-                                GNUNET_DISK_PIPE_END_READ);
-  GNUNET_assert (! GNUNET_DISK_handle_invalid (pr));
-  (void) GNUNET_DISK_file_read (pr,
-                                buf,
-                                sizeof(buf));
-
-  /* find applicable processes that exited */
-  for (struct GNUNET_ChildWaitHandle *cwh = cwh_head;
-       NULL != cwh;
-       cwh = nxt)
-  {
-    enum GNUNET_OS_ProcessStatusType type;
-    long unsigned int exit_code = 0;
-
-    nxt = cwh->next;
-    if (GNUNET_OK ==
-        GNUNET_OS_process_status (cwh->proc,
-                                  &type,
-                                  &exit_code))
-    {
-      GNUNET_CONTAINER_DLL_remove (cwh_head,
-                                   cwh_tail,
-                                   cwh);
-      cwh->cb (cwh->cb_cls,
-               type,
-               exit_code);
-      GNUNET_free (cwh);
-    }
-  }
-  if (NULL == cwh_head)
-    return;
-  /* wait for more */
-  sig_task = GNUNET_SCHEDULER_add_read_file (
-    GNUNET_TIME_UNIT_FOREVER_REL,
-    GNUNET_DISK_pipe_handle (sigpipe,
-                             GNUNET_DISK_PIPE_END_READ),
-    &maint_child_death,
-    NULL);
-}
-
-
-/**
- * Signal handler called for SIGCHLD.  Triggers the
- * respective handler by writing to the trigger pipe.
- */
-static void
-sighandler_child_death (void)
-{
-  static char c;
-  int old_errno = errno; /* back-up errno */
-
-  GNUNET_break (
-    1 ==
-    GNUNET_DISK_file_write (GNUNET_DISK_pipe_handle (sigpipe,
-                                                     GNUNET_DISK_PIPE_END_WRITE),
-                            &c,
-                            sizeof(c)));
-  errno = old_errno; /* restore errno */
-}
-
-
-/**
- * Initializing the signal pipe for child handling.
- */
-static void
-child_management_start (void)
-{
-  GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-              "Trying to start child management.\n");
-  if (NULL != sigpipe)
-    return; /* already initialized */
-  sigpipe = GNUNET_DISK_pipe (GNUNET_DISK_PF_NONE);
-  GNUNET_assert (sigpipe != NULL);
-  shc_chld =
-    GNUNET_SIGNAL_handler_install (GNUNET_SIGCHLD,
-                                   &sighandler_child_death);
-  GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-              "Child management started.\n");
-}
-
-
-/**
- * Clean up.
- */
-static void
-child_management_done (void)
-{
-  if (NULL != sig_task)
-  {
-    GNUNET_SCHEDULER_cancel (sig_task);
-    sig_task = NULL;
-  }
-  GNUNET_SIGNAL_handler_uninstall (shc_chld);
-  shc_chld = NULL;
-  GNUNET_DISK_pipe_close (sigpipe);
-  sigpipe = NULL;
-  GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-              "Child management stopped.\n");
-}
-
-
-struct GNUNET_ChildWaitHandle *
-GNUNET_wait_child (struct GNUNET_OS_Process *proc,
-                   GNUNET_ChildCompletedCallback cb,
-                   void *cb_cls)
-{
-  struct GNUNET_ChildWaitHandle *cwh;
-  bool may_race = (NULL == sigpipe);
-
-  child_management_start ();
-  cwh = GNUNET_new (struct GNUNET_ChildWaitHandle);
-  cwh->proc = proc;
-  cwh->cb = cb;
-  cwh->cb_cls = cb_cls;
-  GNUNET_CONTAINER_DLL_insert (cwh_head,
-                               cwh_tail,
-                               cwh);
-  if (NULL == sig_task)
-  {
-    sig_task = GNUNET_SCHEDULER_add_read_file (
-      GNUNET_TIME_UNIT_FOREVER_REL,
-      GNUNET_DISK_pipe_handle (sigpipe,
-                               GNUNET_DISK_PIPE_END_READ),
-      &maint_child_death,
-      NULL);
-  }
-  /* Handle race-condition case where the child terminated just before we
-     installed the signal handler and thus we missed the signal. */
-  if (may_race)
-    sighandler_child_death ();
-  return cwh;
-}
-
-
-void
-GNUNET_wait_child_cancel (struct GNUNET_ChildWaitHandle *cwh)
-{
-  GNUNET_CONTAINER_DLL_remove (cwh_head,
-                               cwh_tail,
-                               cwh);
-  GNUNET_free (cwh);
-  if (NULL != cwh_head)
-    return;
-  child_management_done ();
-}