merge(3p/git): Merge git upstream at v2.26.2 r/808

1 files changed, 0 insertions, 41 deletions

diff --git a/third_party/git/Documentation/technical/api-sigchain.txt b/third_party/git/Documentation/technical/api-sigchain.txt
deleted file mode 100644
index 9e1189ef01df..000000000000
--- a/third_party/git/Documentation/technical/api-sigchain.txt
+++ /dev/null
@@ -1,41 +0,0 @@
-sigchain API
-============
-
-Code often wants to set a signal handler to clean up temporary files or
-other work-in-progress when we die unexpectedly. For multiple pieces of
-code to do this without conflicting, each piece of code must remember
-the old value of the handler and restore it either when:
-
-  1. The work-in-progress is finished, and the handler is no longer
-     necessary. The handler should revert to the original behavior
-     (either another handler, SIG_DFL, or SIG_IGN).
-
-  2. The signal is received. We should then do our cleanup, then chain
-     to the next handler (or die if it is SIG_DFL).
-
-Sigchain is a tiny library for keeping a stack of handlers. Your handler
-and installation code should look something like:
-
-------------------------------------------
-  void clean_foo_on_signal(int sig)
-  {
-	  clean_foo();
-	  sigchain_pop(sig);
-	  raise(sig);
-  }
-
-  void other_func()
-  {
-	  sigchain_push_common(clean_foo_on_signal);
-	  mess_up_foo();
-	  clean_foo();
-  }
-------------------------------------------
-
-Handlers are given the typedef of sigchain_fun. This is the same type
-that is given to signal() or sigaction(). It is perfectly reasonable to
-push SIG_DFL or SIG_IGN onto the stack.
-
-You can sigchain_push and sigchain_pop individual signals. For
-convenience, sigchain_push_common will push the handler onto the stack
-for many common signals.