mirror of
https://sourceware.org/git/binutils-gdb.git
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6d3d12ebef
This commit includes string.h in common-defs.h and removes all other inclusions. gdb/ 2014-08-07 Gary Benson <gbenson@redhat.com> * common/common-defs.h: Include string.h. * aarch64-tdep.c: Do not include string.h. * ada-exp.y: Likewise. * ada-lang.c: Likewise. * ada-lex.l: Likewise. * ada-typeprint.c: Likewise. * ada-valprint.c: Likewise. * aix-thread.c: Likewise. * alpha-linux-tdep.c: Likewise. * alpha-mdebug-tdep.c: Likewise. * alpha-nat.c: Likewise. * alpha-osf1-tdep.c: Likewise. * alpha-tdep.c: Likewise. * alphanbsd-tdep.c: Likewise. * amd64-dicos-tdep.c: Likewise. * amd64-linux-tdep.c: Likewise. * amd64-nat.c: Likewise. * amd64-sol2-tdep.c: Likewise. * amd64fbsd-tdep.c: Likewise. * amd64obsd-tdep.c: Likewise. * arch-utils.c: Likewise. * arm-linux-nat.c: Likewise. * arm-linux-tdep.c: Likewise. * arm-tdep.c: Likewise. * arm-wince-tdep.c: Likewise. * armbsd-tdep.c: Likewise. * armnbsd-nat.c: Likewise. * armnbsd-tdep.c: Likewise. * armobsd-tdep.c: Likewise. * avr-tdep.c: Likewise. * ax-gdb.c: Likewise. * ax-general.c: Likewise. * bcache.c: Likewise. * bfin-tdep.c: Likewise. * breakpoint.c: Likewise. * build-id.c: Likewise. * buildsym.c: Likewise. * c-exp.y: Likewise. * c-lang.c: Likewise. * c-typeprint.c: Likewise. * c-valprint.c: Likewise. * charset.c: Likewise. * cli-out.c: Likewise. * cli/cli-cmds.c: Likewise. * cli/cli-decode.c: Likewise. * cli/cli-dump.c: Likewise. * cli/cli-interp.c: Likewise. * cli/cli-logging.c: Likewise. * cli/cli-script.c: Likewise. * cli/cli-setshow.c: Likewise. * cli/cli-utils.c: Likewise. * coffread.c: Likewise. * common/agent.c: Likewise. * common/buffer.c: Likewise. * common/buffer.h: Likewise. * common/common-utils.c: Likewise. * common/filestuff.c: Likewise. * common/filestuff.c: Likewise. * common/format.c: Likewise. * common/print-utils.c: Likewise. * common/rsp-low.c: Likewise. * common/signals.c: Likewise. * common/vec.h: Likewise. * common/xml-utils.c: Likewise. * core-regset.c: Likewise. * corefile.c: Likewise. * corelow.c: Likewise. * cp-abi.c: Likewise. * cp-name-parser.y: Likewise. * cp-support.c: Likewise. * cp-valprint.c: Likewise. * cris-tdep.c: Likewise. * d-exp.y: Likewise. * darwin-nat.c: Likewise. * dbxread.c: Likewise. * dcache.c: Likewise. * demangle.c: Likewise. * dicos-tdep.c: Likewise. * disasm.c: Likewise. * doublest.c: Likewise. * dsrec.c: Likewise. * dummy-frame.c: Likewise. * dwarf2-frame.c: Likewise. * dwarf2loc.c: Likewise. * dwarf2read.c: Likewise. * elfread.c: Likewise. * environ.c: Likewise. * eval.c: Likewise. * event-loop.c: Likewise. * exceptions.c: Likewise. * exec.c: Likewise. * expprint.c: Likewise. * f-exp.y: Likewise. * f-lang.c: Likewise. * f-typeprint.c: Likewise. * f-valprint.c: Likewise. * fbsd-nat.c: Likewise. * findcmd.c: Likewise. * findvar.c: Likewise. * fork-child.c: Likewise. * frame.c: Likewise. * frv-linux-tdep.c: Likewise. * frv-tdep.c: Likewise. * gdb.c: Likewise. * gdb_bfd.c: Likewise. * gdbarch.c: Likewise. * gdbarch.sh: Likewise. * gdbtypes.c: Likewise. * gnu-nat.c: Likewise. * gnu-v2-abi.c: Likewise. * gnu-v3-abi.c: Likewise. * go-exp.y: Likewise. * go-lang.c: Likewise. * go32-nat.c: Likewise. * guile/guile.c: Likewise. * guile/scm-auto-load.c: Likewise. * hppa-hpux-tdep.c: Likewise. * hppa-linux-nat.c: Likewise. * hppanbsd-tdep.c: Likewise. * hppaobsd-tdep.c: Likewise. * i386-cygwin-tdep.c: Likewise. * i386-dicos-tdep.c: Likewise. * i386-linux-tdep.c: Likewise. * i386-nto-tdep.c: Likewise. * i386-sol2-tdep.c: Likewise. * i386-tdep.c: Likewise. * i386bsd-tdep.c: Likewise. * i386gnu-nat.c: Likewise. * i386nbsd-tdep.c: Likewise. * i386obsd-tdep.c: Likewise. * i387-tdep.c: Likewise. * ia64-libunwind-tdep.c: Likewise. * ia64-linux-nat.c: Likewise. * inf-child.c: Likewise. * inf-ptrace.c: Likewise. * inf-ttrace.c: Likewise. * infcall.c: Likewise. * infcmd.c: Likewise. * inflow.c: Likewise. * infrun.c: Likewise. * interps.c: Likewise. * iq2000-tdep.c: Likewise. * irix5-nat.c: Likewise. * jv-exp.y: Likewise. * jv-lang.c: Likewise. * jv-typeprint.c: Likewise. * jv-valprint.c: Likewise. * language.c: Likewise. * linux-fork.c: Likewise. * linux-nat.c: Likewise. * lm32-tdep.c: Likewise. * m2-exp.y: Likewise. * m2-typeprint.c: Likewise. * m32c-tdep.c: Likewise. * m32r-linux-nat.c: Likewise. * m32r-linux-tdep.c: Likewise. * m32r-rom.c: Likewise. * m32r-tdep.c: Likewise. * m68hc11-tdep.c: Likewise. * m68k-tdep.c: Likewise. * m68kbsd-tdep.c: Likewise. * m68klinux-nat.c: Likewise. * m68klinux-tdep.c: Likewise. * m88k-tdep.c: Likewise. * machoread.c: Likewise. * macrocmd.c: Likewise. * main.c: Likewise. * mdebugread.c: Likewise. * mem-break.c: Likewise. * memattr.c: Likewise. * memory-map.c: Likewise. * mep-tdep.c: Likewise. * mi/mi-cmd-break.c: Likewise. * mi/mi-cmd-disas.c: Likewise. * mi/mi-cmd-env.c: Likewise. * mi/mi-cmd-stack.c: Likewise. * mi/mi-cmd-var.c: Likewise. * mi/mi-cmds.c: Likewise. * mi/mi-console.c: Likewise. * mi/mi-getopt.c: Likewise. * mi/mi-interp.c: Likewise. * mi/mi-main.c: Likewise. * mi/mi-parse.c: Likewise. * microblaze-rom.c: Likewise. * microblaze-tdep.c: Likewise. * mingw-hdep.c: Likewise. * minidebug.c: Likewise. * minsyms.c: Likewise. * mips-irix-tdep.c: Likewise. * mips-linux-tdep.c: Likewise. * mips-tdep.c: Likewise. * mips64obsd-tdep.c: Likewise. * mipsnbsd-tdep.c: Likewise. * mipsread.c: Likewise. * mn10300-linux-tdep.c: Likewise. * mn10300-tdep.c: Likewise. * monitor.c: Likewise. * moxie-tdep.c: Likewise. * mt-tdep.c: Likewise. * nat/linux-btrace.c: Likewise. * nat/linux-osdata.c: Likewise. * nat/linux-procfs.c: Likewise. * nat/linux-ptrace.c: Likewise. * nat/linux-waitpid.c: Likewise. * nbsd-tdep.c: Likewise. * nios2-linux-tdep.c: Likewise. * nto-procfs.c: Likewise. * nto-tdep.c: Likewise. * objc-lang.c: Likewise. * objfiles.c: Likewise. * opencl-lang.c: Likewise. * osabi.c: Likewise. * osdata.c: Likewise. * p-exp.y: Likewise. * p-lang.c: Likewise. * p-typeprint.c: Likewise. * parse.c: Likewise. * posix-hdep.c: Likewise. * ppc-linux-nat.c: Likewise. * ppc-sysv-tdep.c: Likewise. * ppcfbsd-tdep.c: Likewise. * ppcnbsd-tdep.c: Likewise. * ppcobsd-tdep.c: Likewise. * printcmd.c: Likewise. * procfs.c: Likewise. * prologue-value.c: Likewise. * python/py-auto-load.c: Likewise. * python/py-gdb-readline.c: Likewise. * ravenscar-thread.c: Likewise. * regcache.c: Likewise. * registry.c: Likewise. * remote-fileio.c: Likewise. * remote-m32r-sdi.c: Likewise. * remote-mips.c: Likewise. * remote-notif.c: Likewise. * remote-sim.c: Likewise. * remote.c: Likewise. * reverse.c: Likewise. * rs6000-aix-tdep.c: Likewise. * ser-base.c: Likewise. * ser-go32.c: Likewise. * ser-mingw.c: Likewise. * ser-pipe.c: Likewise. * ser-tcp.c: Likewise. * ser-unix.c: Likewise. * serial.c: Likewise. * sh-tdep.c: Likewise. * sh64-tdep.c: Likewise. * shnbsd-tdep.c: Likewise. * skip.c: Likewise. * sol-thread.c: Likewise. * solib-dsbt.c: Likewise. * solib-frv.c: Likewise. * solib-osf.c: Likewise. * solib-som.c: Likewise. * solib-spu.c: Likewise. * solib-target.c: Likewise. * solib.c: Likewise. * somread.c: Likewise. * source.c: Likewise. * sparc-nat.c: Likewise. * sparc-sol2-tdep.c: Likewise. * sparc-tdep.c: Likewise. * sparc64-tdep.c: Likewise. * sparc64fbsd-tdep.c: Likewise. * sparc64nbsd-tdep.c: Likewise. * sparcnbsd-tdep.c: Likewise. * spu-linux-nat.c: Likewise. * spu-multiarch.c: Likewise. * spu-tdep.c: Likewise. * stabsread.c: Likewise. * stack.c: Likewise. * std-regs.c: Likewise. * symfile.c: Likewise. * symmisc.c: Likewise. * symtab.c: Likewise. * target.c: Likewise. * thread.c: Likewise. * tilegx-linux-nat.c: Likewise. * tilegx-tdep.c: Likewise. * top.c: Likewise. * tracepoint.c: Likewise. * tui/tui-command.c: Likewise. * tui/tui-data.c: Likewise. * tui/tui-disasm.c: Likewise. * tui/tui-file.c: Likewise. * tui/tui-layout.c: Likewise. * tui/tui-out.c: Likewise. * tui/tui-regs.c: Likewise. * tui/tui-source.c: Likewise. * tui/tui-stack.c: Likewise. * tui/tui-win.c: Likewise. * tui/tui-windata.c: Likewise. * tui/tui-winsource.c: Likewise. * typeprint.c: Likewise. * ui-file.c: Likewise. * ui-out.c: Likewise. * user-regs.c: Likewise. * utils.c: Likewise. * v850-tdep.c: Likewise. * valarith.c: Likewise. * valops.c: Likewise. * valprint.c: Likewise. * value.c: Likewise. * varobj.c: Likewise. * vax-tdep.c: Likewise. * vaxnbsd-tdep.c: Likewise. * vaxobsd-tdep.c: Likewise. * windows-nat.c: Likewise. * xcoffread.c: Likewise. * xml-support.c: Likewise. * xstormy16-tdep.c: Likewise. * xtensa-linux-nat.c: Likewise. gdb/gdbserver/ 2014-08-07 Gary Benson <gbenson@redhat.com> * server.h: Do not include string.h. * event-loop.c: Likewise. * linux-low.c: Likewise. * regcache.c: Likewise. * remote-utils.c: Likewise. * spu-low.c: Likewise. * utils.c: Likewise.
578 lines
14 KiB
C
578 lines
14 KiB
C
/* Generic serial interface functions.
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Copyright (C) 1992-2014 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "serial.h"
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#include "ser-base.h"
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#include "event-loop.h"
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#include "gdb_select.h"
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#include <sys/time.h>
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#ifdef USE_WIN32API
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#include <winsock2.h>
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#endif
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static timer_handler_func push_event;
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static handler_func fd_event;
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/* Event handling for ASYNC serial code.
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At any time the SERIAL device either: has an empty FIFO and is
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waiting on a FD event; or has a non-empty FIFO/error condition and
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is constantly scheduling timer events.
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ASYNC only stops pestering its client when it is de-async'ed or it
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is told to go away. */
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/* Value of scb->async_state: */
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enum {
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/* >= 0 (TIMER_SCHEDULED) */
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/* The ID of the currently scheduled timer event. This state is
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rarely encountered. Timer events are one-off so as soon as the
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event is delivered the state is shanged to NOTHING_SCHEDULED. */
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FD_SCHEDULED = -1,
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/* The fd_event() handler is scheduled. It is called when ever the
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file descriptor becomes ready. */
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NOTHING_SCHEDULED = -2
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/* Either no task is scheduled (just going into ASYNC mode) or a
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timer event has just gone off and the current state has been
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forced into nothing scheduled. */
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};
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/* Identify and schedule the next ASYNC task based on scb->async_state
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and scb->buf* (the input FIFO). A state machine is used to avoid
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the need to make redundant calls into the event-loop - the next
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scheduled task is only changed when needed. */
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static void
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reschedule (struct serial *scb)
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{
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if (serial_is_async_p (scb))
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{
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int next_state;
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switch (scb->async_state)
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{
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case FD_SCHEDULED:
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if (scb->bufcnt == 0)
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next_state = FD_SCHEDULED;
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else
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{
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delete_file_handler (scb->fd);
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next_state = create_timer (0, push_event, scb);
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}
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break;
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case NOTHING_SCHEDULED:
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if (scb->bufcnt == 0)
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{
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add_file_handler (scb->fd, fd_event, scb);
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next_state = FD_SCHEDULED;
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}
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else
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{
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next_state = create_timer (0, push_event, scb);
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}
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break;
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default: /* TIMER SCHEDULED */
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if (scb->bufcnt == 0)
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{
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delete_timer (scb->async_state);
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add_file_handler (scb->fd, fd_event, scb);
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next_state = FD_SCHEDULED;
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}
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else
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next_state = scb->async_state;
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break;
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}
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if (serial_debug_p (scb))
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{
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switch (next_state)
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{
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case FD_SCHEDULED:
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if (scb->async_state != FD_SCHEDULED)
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fprintf_unfiltered (gdb_stdlog, "[fd%d->fd-scheduled]\n",
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scb->fd);
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break;
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default: /* TIMER SCHEDULED */
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if (scb->async_state == FD_SCHEDULED)
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fprintf_unfiltered (gdb_stdlog, "[fd%d->timer-scheduled]\n",
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scb->fd);
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break;
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}
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}
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scb->async_state = next_state;
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}
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}
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/* Run the SCB's async handle, and reschedule, if the handler doesn't
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close SCB. */
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static void
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run_async_handler_and_reschedule (struct serial *scb)
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{
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int is_open;
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/* Take a reference, so a serial_close call within the handler
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doesn't make SCB a dangling pointer. */
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serial_ref (scb);
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/* Run the handler. */
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scb->async_handler (scb, scb->async_context);
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is_open = serial_is_open (scb);
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serial_unref (scb);
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/* Get ready for more, if not already closed. */
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if (is_open)
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reschedule (scb);
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}
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/* FD_EVENT: This is scheduled when the input FIFO is empty (and there
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is no pending error). As soon as data arrives, it is read into the
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input FIFO and the client notified. The client should then drain
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the FIFO using readchar(). If the FIFO isn't immediatly emptied,
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push_event() is used to nag the client until it is. */
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static void
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fd_event (int error, void *context)
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{
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struct serial *scb = context;
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if (error != 0)
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{
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scb->bufcnt = SERIAL_ERROR;
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}
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else if (scb->bufcnt == 0)
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{
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/* Prime the input FIFO. The readchar() function is used to
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pull characters out of the buffer. See also
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generic_readchar(). */
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int nr;
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nr = scb->ops->read_prim (scb, BUFSIZ);
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if (nr == 0)
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{
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scb->bufcnt = SERIAL_EOF;
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}
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else if (nr > 0)
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{
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scb->bufcnt = nr;
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scb->bufp = scb->buf;
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}
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else
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{
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scb->bufcnt = SERIAL_ERROR;
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}
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}
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run_async_handler_and_reschedule (scb);
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}
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/* PUSH_EVENT: The input FIFO is non-empty (or there is a pending
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error). Nag the client until all the data has been read. In the
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case of errors, the client will need to close or de-async the
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device before naging stops. */
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static void
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push_event (void *context)
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{
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struct serial *scb = context;
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scb->async_state = NOTHING_SCHEDULED; /* Timers are one-off */
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run_async_handler_and_reschedule (scb);
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}
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/* Wait for input on scb, with timeout seconds. Returns 0 on success,
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otherwise SERIAL_TIMEOUT or SERIAL_ERROR. */
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static int
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ser_base_wait_for (struct serial *scb, int timeout)
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{
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while (1)
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{
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int numfds;
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struct timeval tv;
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fd_set readfds, exceptfds;
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/* NOTE: Some OS's can scramble the READFDS when the select()
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call fails (ex the kernel with Red Hat 5.2). Initialize all
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arguments before each call. */
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tv.tv_sec = timeout;
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tv.tv_usec = 0;
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FD_ZERO (&readfds);
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FD_ZERO (&exceptfds);
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FD_SET (scb->fd, &readfds);
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FD_SET (scb->fd, &exceptfds);
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if (timeout >= 0)
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numfds = gdb_select (scb->fd + 1, &readfds, 0, &exceptfds, &tv);
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else
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numfds = gdb_select (scb->fd + 1, &readfds, 0, &exceptfds, 0);
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if (numfds <= 0)
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{
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if (numfds == 0)
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return SERIAL_TIMEOUT;
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else if (errno == EINTR)
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continue;
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else
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return SERIAL_ERROR; /* Got an error from select or
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poll. */
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}
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return 0;
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}
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}
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/* Read any error output we might have. */
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static void
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ser_base_read_error_fd (struct serial *scb, int close_fd)
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{
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if (scb->error_fd != -1)
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{
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ssize_t s;
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char buf[GDB_MI_MSG_WIDTH + 1];
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for (;;)
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{
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char *current;
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char *newline;
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int to_read = GDB_MI_MSG_WIDTH;
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int num_bytes = -1;
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if (scb->ops->avail)
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num_bytes = (scb->ops->avail)(scb, scb->error_fd);
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if (num_bytes != -1)
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to_read = (num_bytes < to_read) ? num_bytes : to_read;
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if (to_read == 0)
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break;
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s = read (scb->error_fd, &buf, to_read);
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if ((s == -1) || (s == 0 && !close_fd))
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break;
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if (s == 0 && close_fd)
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{
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/* End of file. */
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close (scb->error_fd);
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scb->error_fd = -1;
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break;
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}
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/* In theory, embedded newlines are not a problem.
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But for MI, we want each output line to have just
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one newline for legibility. So output things
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in newline chunks. */
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gdb_assert (s > 0 && s <= GDB_MI_MSG_WIDTH);
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buf[s] = '\0';
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current = buf;
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while ((newline = strstr (current, "\n")) != NULL)
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{
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*newline = '\0';
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fputs_unfiltered (current, gdb_stderr);
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fputs_unfiltered ("\n", gdb_stderr);
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current = newline + 1;
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}
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fputs_unfiltered (current, gdb_stderr);
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}
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}
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}
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/* Read a character with user-specified timeout. TIMEOUT is number of seconds
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to wait, or -1 to wait forever. Use timeout of 0 to effect a poll. Returns
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char if successful. Returns -2 if timeout expired, EOF if line dropped
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dead, or -3 for any other error (see errno in that case). */
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static int
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do_ser_base_readchar (struct serial *scb, int timeout)
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{
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int status;
|
|
int delta;
|
|
|
|
/* We have to be able to keep the GUI alive here, so we break the
|
|
original timeout into steps of 1 second, running the "keep the
|
|
GUI alive" hook each time through the loop.
|
|
|
|
Also, timeout = 0 means to poll, so we just set the delta to 0,
|
|
so we will only go through the loop once. */
|
|
|
|
delta = (timeout == 0 ? 0 : 1);
|
|
while (1)
|
|
{
|
|
/* N.B. The UI may destroy our world (for instance by calling
|
|
remote_stop,) in which case we want to get out of here as
|
|
quickly as possible. It is not safe to touch scb, since
|
|
someone else might have freed it. The
|
|
deprecated_ui_loop_hook signals that we should exit by
|
|
returning 1. */
|
|
|
|
if (deprecated_ui_loop_hook)
|
|
{
|
|
if (deprecated_ui_loop_hook (0))
|
|
return SERIAL_TIMEOUT;
|
|
}
|
|
|
|
status = ser_base_wait_for (scb, delta);
|
|
if (timeout > 0)
|
|
timeout -= delta;
|
|
|
|
/* If we got a character or an error back from wait_for, then we can
|
|
break from the loop before the timeout is completed. */
|
|
if (status != SERIAL_TIMEOUT)
|
|
break;
|
|
|
|
/* If we have exhausted the original timeout, then generate
|
|
a SERIAL_TIMEOUT, and pass it out of the loop. */
|
|
else if (timeout == 0)
|
|
{
|
|
status = SERIAL_TIMEOUT;
|
|
break;
|
|
}
|
|
|
|
/* We also need to check and consume the stderr because it could
|
|
come before the stdout for some stubs. If we just sit and wait
|
|
for stdout, we would hit a deadlock for that case. */
|
|
ser_base_read_error_fd (scb, 0);
|
|
}
|
|
|
|
if (status < 0)
|
|
return status;
|
|
|
|
status = scb->ops->read_prim (scb, BUFSIZ);
|
|
|
|
if (status <= 0)
|
|
{
|
|
if (status == 0)
|
|
return SERIAL_EOF;
|
|
else
|
|
/* Got an error from read. */
|
|
return SERIAL_ERROR;
|
|
}
|
|
|
|
scb->bufcnt = status;
|
|
scb->bufcnt--;
|
|
scb->bufp = scb->buf;
|
|
return *scb->bufp++;
|
|
}
|
|
|
|
/* Perform operations common to both old and new readchar. */
|
|
|
|
/* Return the next character from the input FIFO. If the FIFO is
|
|
empty, call the SERIAL specific routine to try and read in more
|
|
characters.
|
|
|
|
Initially data from the input FIFO is returned (fd_event()
|
|
pre-reads the input into that FIFO. Once that has been emptied,
|
|
further data is obtained by polling the input FD using the device
|
|
specific readchar() function. Note: reschedule() is called after
|
|
every read. This is because there is no guarentee that the lower
|
|
level fd_event() poll_event() code (which also calls reschedule())
|
|
will be called. */
|
|
|
|
int
|
|
generic_readchar (struct serial *scb, int timeout,
|
|
int (do_readchar) (struct serial *scb, int timeout))
|
|
{
|
|
int ch;
|
|
if (scb->bufcnt > 0)
|
|
{
|
|
ch = *scb->bufp;
|
|
scb->bufcnt--;
|
|
scb->bufp++;
|
|
}
|
|
else if (scb->bufcnt < 0)
|
|
{
|
|
/* Some errors/eof are are sticky. */
|
|
ch = scb->bufcnt;
|
|
}
|
|
else
|
|
{
|
|
ch = do_readchar (scb, timeout);
|
|
if (ch < 0)
|
|
{
|
|
switch ((enum serial_rc) ch)
|
|
{
|
|
case SERIAL_EOF:
|
|
case SERIAL_ERROR:
|
|
/* Make the error/eof stick. */
|
|
scb->bufcnt = ch;
|
|
break;
|
|
case SERIAL_TIMEOUT:
|
|
scb->bufcnt = 0;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Read any error output we might have. */
|
|
ser_base_read_error_fd (scb, 1);
|
|
|
|
reschedule (scb);
|
|
return ch;
|
|
}
|
|
|
|
int
|
|
ser_base_readchar (struct serial *scb, int timeout)
|
|
{
|
|
return generic_readchar (scb, timeout, do_ser_base_readchar);
|
|
}
|
|
|
|
int
|
|
ser_base_write (struct serial *scb, const void *buf, size_t count)
|
|
{
|
|
const char *str = buf;
|
|
int cc;
|
|
|
|
while (count > 0)
|
|
{
|
|
cc = scb->ops->write_prim (scb, str, count);
|
|
|
|
if (cc < 0)
|
|
return 1;
|
|
count -= cc;
|
|
str += cc;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ser_base_flush_output (struct serial *scb)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ser_base_flush_input (struct serial *scb)
|
|
{
|
|
if (scb->bufcnt >= 0)
|
|
{
|
|
scb->bufcnt = 0;
|
|
scb->bufp = scb->buf;
|
|
return 0;
|
|
}
|
|
else
|
|
return SERIAL_ERROR;
|
|
}
|
|
|
|
int
|
|
ser_base_send_break (struct serial *scb)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ser_base_drain_output (struct serial *scb)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
ser_base_raw (struct serial *scb)
|
|
{
|
|
return; /* Always in raw mode. */
|
|
}
|
|
|
|
serial_ttystate
|
|
ser_base_get_tty_state (struct serial *scb)
|
|
{
|
|
/* Allocate a dummy. */
|
|
return (serial_ttystate) XNEW (int);
|
|
}
|
|
|
|
serial_ttystate
|
|
ser_base_copy_tty_state (struct serial *scb, serial_ttystate ttystate)
|
|
{
|
|
/* Allocate another dummy. */
|
|
return (serial_ttystate) XNEW (int);
|
|
}
|
|
|
|
int
|
|
ser_base_set_tty_state (struct serial *scb, serial_ttystate ttystate)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
ser_base_noflush_set_tty_state (struct serial *scb,
|
|
serial_ttystate new_ttystate,
|
|
serial_ttystate old_ttystate)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
ser_base_print_tty_state (struct serial *scb,
|
|
serial_ttystate ttystate,
|
|
struct ui_file *stream)
|
|
{
|
|
/* Nothing to print. */
|
|
return;
|
|
}
|
|
|
|
int
|
|
ser_base_setbaudrate (struct serial *scb, int rate)
|
|
{
|
|
return 0; /* Never fails! */
|
|
}
|
|
|
|
int
|
|
ser_base_setstopbits (struct serial *scb, int num)
|
|
{
|
|
return 0; /* Never fails! */
|
|
}
|
|
|
|
/* Put the SERIAL device into/out-of ASYNC mode. */
|
|
|
|
void
|
|
ser_base_async (struct serial *scb,
|
|
int async_p)
|
|
{
|
|
if (async_p)
|
|
{
|
|
/* Force a re-schedule. */
|
|
scb->async_state = NOTHING_SCHEDULED;
|
|
if (serial_debug_p (scb))
|
|
fprintf_unfiltered (gdb_stdlog, "[fd%d->asynchronous]\n",
|
|
scb->fd);
|
|
reschedule (scb);
|
|
}
|
|
else
|
|
{
|
|
if (serial_debug_p (scb))
|
|
fprintf_unfiltered (gdb_stdlog, "[fd%d->synchronous]\n",
|
|
scb->fd);
|
|
/* De-schedule whatever tasks are currently scheduled. */
|
|
switch (scb->async_state)
|
|
{
|
|
case FD_SCHEDULED:
|
|
delete_file_handler (scb->fd);
|
|
break;
|
|
case NOTHING_SCHEDULED:
|
|
break;
|
|
default: /* TIMER SCHEDULED */
|
|
delete_timer (scb->async_state);
|
|
break;
|
|
}
|
|
}
|
|
}
|