e08d5239b6
If one thread is reading and another closes that socket, the close blocks waiting for the read to abort cleanly. This ensures that Ruby is totally done with the file descriptor _BEFORE_ we tell the OS to close and potentially re-use it. When the read is correctly terminated, the close should be unblocked. That currently works if closing is happening on a thread, but if it's happening on a fiber with a fiber scheduler, it does NOT work. This patch ensures that if the close happened in a fiber scheduled thread, that the scheduler is notified that the fiber is unblocked. [Bug #20723]
86 lines
3.2 KiB
C
86 lines
3.2 KiB
C
#ifndef INTERNAL_THREAD_H /*-*-C-*-vi:se ft=c:*/
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#define INTERNAL_THREAD_H
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/**
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* @author Ruby developers <ruby-core@ruby-lang.org>
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* @copyright This file is a part of the programming language Ruby.
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* Permission is hereby granted, to either redistribute and/or
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* modify this file, provided that the conditions mentioned in the
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* file COPYING are met. Consult the file for details.
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* @brief Internal header for Thread.
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*/
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#include "ruby/ruby.h" /* for VALUE */
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#include "ruby/intern.h" /* for rb_blocking_function_t */
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#include "ccan/list/list.h" /* for list in rb_io_close_wait_list */
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struct rb_thread_struct; /* in vm_core.h */
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#define RB_VM_SAVE_MACHINE_CONTEXT(th) \
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do { \
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FLUSH_REGISTER_WINDOWS; \
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setjmp((th)->ec->machine.regs); \
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SET_MACHINE_STACK_END(&(th)->ec->machine.stack_end); \
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} while (0)
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/* thread.c */
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#define COVERAGE_INDEX_LINES 0
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#define COVERAGE_INDEX_BRANCHES 1
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#define COVERAGE_TARGET_LINES 1
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#define COVERAGE_TARGET_BRANCHES 2
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#define COVERAGE_TARGET_METHODS 4
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#define COVERAGE_TARGET_ONESHOT_LINES 8
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#define COVERAGE_TARGET_EVAL 16
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#define RUBY_FATAL_THREAD_KILLED INT2FIX(0)
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#define RUBY_FATAL_THREAD_TERMINATED INT2FIX(1)
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#define RUBY_FATAL_FIBER_KILLED RB_INT2FIX(2)
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VALUE rb_obj_is_mutex(VALUE obj);
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VALUE rb_suppress_tracing(VALUE (*func)(VALUE), VALUE arg);
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void rb_thread_execute_interrupts(VALUE th);
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VALUE rb_get_coverages(void);
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int rb_get_coverage_mode(void);
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VALUE rb_default_coverage(int);
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VALUE rb_thread_shield_new(void);
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bool rb_thread_shield_owned(VALUE self);
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VALUE rb_thread_shield_wait(VALUE self);
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VALUE rb_thread_shield_release(VALUE self);
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VALUE rb_thread_shield_destroy(VALUE self);
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int rb_thread_to_be_killed(VALUE thread);
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void rb_thread_acquire_fork_lock(void);
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void rb_thread_release_fork_lock(void);
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void rb_thread_reset_fork_lock(void);
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void rb_mutex_allow_trap(VALUE self, int val);
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VALUE rb_uninterruptible(VALUE (*b_proc)(VALUE), VALUE data);
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VALUE rb_mutex_owned_p(VALUE self);
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VALUE rb_exec_recursive_outer_mid(VALUE (*f)(VALUE g, VALUE h, int r), VALUE g, VALUE h, ID mid);
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void ruby_mn_threads_params(void);
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int rb_thread_wait_for_single_fd(int fd, int events, struct timeval * timeout);
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struct rb_io_close_wait_list {
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struct ccan_list_head pending_fd_users;
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VALUE closing_thread;
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VALUE closing_fiber;
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VALUE wakeup_mutex;
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};
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int rb_notify_fd_close(int fd, struct rb_io_close_wait_list *busy);
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void rb_notify_fd_close_wait(struct rb_io_close_wait_list *busy);
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RUBY_SYMBOL_EXPORT_BEGIN
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void *rb_thread_prevent_fork(void *(*func)(void *), void *data); /* for ext/socket/raddrinfo.c */
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/* Temporary. This API will be removed (renamed). */
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VALUE rb_thread_io_blocking_region(rb_blocking_function_t *func, void *data1, int fd);
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VALUE rb_thread_io_blocking_call(rb_blocking_function_t *func, void *data1, int fd, int events);
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/* thread.c (export) */
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int ruby_thread_has_gvl_p(void); /* for ext/fiddle/closure.c */
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RUBY_SYMBOL_EXPORT_END
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int rb_threadptr_execute_interrupts(struct rb_thread_struct *th, int blocking_timing);
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bool rb_thread_mn_schedulable(VALUE thread);
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#endif /* INTERNAL_THREAD_H */
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