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tmux/cmd-set-buffer.c

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Sync OpenBSD patchset 920: Memory leak in error path, from Tiago Cunha.
2011-05-26 20:16:17 +00:00
/* $Id$ */
Start of improved buffer code. Only set-buffer/show-buffer commands so far.
2008-06-20 08:36:20 +00:00
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
Sync OpenBSD patchset 1150: xfree is not particularly helpful, remove it. From Thomas Adam.
2012-07-11 19:34:16 +00:00
#include <stdlib.h>
Sync OpenBSD patchset 318: Give each paste buffer a size member instead of requiring them to be zero-terminated.
2009-09-07 23:48:54 +00:00
#include <string.h>
Start of improved buffer code. Only set-buffer/show-buffer commands so far.
2008-06-20 08:36:20 +00:00
#include "tmux.h"
/*
Sync OpenBSD patchset 964: Plug a memory leak and update some comments, from Tiago Cunha.
2011-10-23 15:02:20 +00:00
* Add or set a paste buffer.
Start of improved buffer code. Only set-buffer/show-buffer commands so far.
2008-06-20 08:36:20 +00:00
*/
Add a command queue to standardize and simplify commands that call other commands and allow a command to block execution of subsequent commands. This allows run-shell and if-shell to be synchronous which has been much requested. Each client has a default command queue and commands are consumed one at a time from it. A command may suspend execution from the queue by returning CMD_RETURN_WAIT and then resume it by calling cmd_continue() - for example run-shell does this from the callback that is fired after the job is freed. When the command queue becomes empty, command clients are automatically exited (unless attaching). A callback is also fired - this is used for nested commands in, for example, if-shell which can block execution of the client's cmdq until a new cmdq becomes empty. Also merge all the old error/info/print functions together and lose the old curclient/cmdclient distinction - a cmdq is bound to one client (or none if in the configuration file), this is a command client if c->session is NULL otherwise an attached client.
2013-02-23 22:25:58 +00:00
enum cmd_retval cmd_set_buffer_exec(struct cmd *, struct cmd_q *);
Start of improved buffer code. Only set-buffer/show-buffer commands so far.
2008-06-20 08:36:20 +00:00
const struct cmd_entry cmd_set_buffer_entry = {
"set-buffer", "setb",
Sync OpenBSD patchset 829: Clean up and simplify tmux command argument parsing. Originally, tmux commands were parsed in the client process into a struct with the command data which was then serialised and sent to the server to be executed. The parsing was later moved into the server (an argv was sent from the client), but the parse step and intermediate struct was kept. This change removes that struct and the separate parse step. Argument parsing and printing is now common to all commands (in arguments.c) with each command left with just an optional check function (to validate the arguments at parse time), the exec function and a function to set up any key bindings (renamed from the old init function). This is overall more simple and consistent. There should be no changes to any commands behaviour or syntax although as this touches every command please watch for any unexpected changes.
2011-01-07 14:45:34 +00:00
"b:", 1, 1,
Global paste buffers instead of per-session which renders copy-buffer useless. As a consequence buffer-limit is now a server option.
2010-12-30 22:39:49 +00:00
CMD_BUFFER_USAGE " data",
Sync OpenBSD patchset 829: Clean up and simplify tmux command argument parsing. Originally, tmux commands were parsed in the client process into a struct with the command data which was then serialised and sent to the server to be executed. The parsing was later moved into the server (an argv was sent from the client), but the parse step and intermediate struct was kept. This change removes that struct and the separate parse step. Argument parsing and printing is now common to all commands (in arguments.c) with each command left with just an optional check function (to validate the arguments at parse time), the exec function and a function to set up any key bindings (renamed from the old init function). This is overall more simple and consistent. There should be no changes to any commands behaviour or syntax although as this touches every command please watch for any unexpected changes.
2011-01-07 14:45:34 +00:00
0,
NULL,
NULL,
cmd_set_buffer_exec
Start of improved buffer code. Only set-buffer/show-buffer commands so far.
2008-06-20 08:36:20 +00:00
};
Sync OpenBSD patchset 1151: Make command exec functions return an enum rather than -1/0/1 values and add a new value to mean "leave client running but don't attach" to fix problems with using some commands in a command sequence. Most of the work by Thomas Adam, problem reported by "jspenguin" on SF bug 3535531.
2012-07-11 19:37:32 +00:00
enum cmd_retval
Add a command queue to standardize and simplify commands that call other commands and allow a command to block execution of subsequent commands. This allows run-shell and if-shell to be synchronous which has been much requested. Each client has a default command queue and commands are consumed one at a time from it. A command may suspend execution from the queue by returning CMD_RETURN_WAIT and then resume it by calling cmd_continue() - for example run-shell does this from the callback that is fired after the job is freed. When the command queue becomes empty, command clients are automatically exited (unless attaching). A callback is also fired - this is used for nested commands in, for example, if-shell which can block execution of the client's cmdq until a new cmdq becomes empty. Also merge all the old error/info/print functions together and lose the old curclient/cmdclient distinction - a cmdq is bound to one client (or none if in the configuration file), this is a command client if c->session is NULL otherwise an attached client.
2013-02-23 22:25:58 +00:00
cmd_set_buffer_exec(struct cmd *self, struct cmd_q *cmdq)
Start of improved buffer code. Only set-buffer/show-buffer commands so far.
2008-06-20 08:36:20 +00:00
{
Sync OpenBSD patchset 829: Clean up and simplify tmux command argument parsing. Originally, tmux commands were parsed in the client process into a struct with the command data which was then serialised and sent to the server to be executed. The parsing was later moved into the server (an argv was sent from the client), but the parse step and intermediate struct was kept. This change removes that struct and the separate parse step. Argument parsing and printing is now common to all commands (in arguments.c) with each command left with just an optional check function (to validate the arguments at parse time), the exec function and a function to set up any key bindings (renamed from the old init function). This is overall more simple and consistent. There should be no changes to any commands behaviour or syntax although as this touches every command please watch for any unexpected changes.
2011-01-07 14:45:34 +00:00
struct args *args = self->args;
u_int limit;
char *pdata, *cause;
size_t psize;
int buffer;
Start of improved buffer code. Only set-buffer/show-buffer commands so far.
2008-06-20 08:36:20 +00:00
Global paste buffers instead of per-session which renders copy-buffer useless. As a consequence buffer-limit is now a server option.
2010-12-30 22:39:49 +00:00
limit = options_get_number(&global_options, "buffer-limit");
Sync OpenBSD patchset 318: Give each paste buffer a size member instead of requiring them to be zero-terminated.
2009-09-07 23:48:54 +00:00
Sync OpenBSD patchset 829: Clean up and simplify tmux command argument parsing. Originally, tmux commands were parsed in the client process into a struct with the command data which was then serialised and sent to the server to be executed. The parsing was later moved into the server (an argv was sent from the client), but the parse step and intermediate struct was kept. This change removes that struct and the separate parse step. Argument parsing and printing is now common to all commands (in arguments.c) with each command left with just an optional check function (to validate the arguments at parse time), the exec function and a function to set up any key bindings (renamed from the old init function). This is overall more simple and consistent. There should be no changes to any commands behaviour or syntax although as this touches every command please watch for any unexpected changes.
2011-01-07 14:45:34 +00:00
pdata = xstrdup(args->argv[0]);
Sync OpenBSD patchset 318: Give each paste buffer a size member instead of requiring them to be zero-terminated.
2009-09-07 23:48:54 +00:00
psize = strlen(pdata);
Sync OpenBSD patchset 829: Clean up and simplify tmux command argument parsing. Originally, tmux commands were parsed in the client process into a struct with the command data which was then serialised and sent to the server to be executed. The parsing was later moved into the server (an argv was sent from the client), but the parse step and intermediate struct was kept. This change removes that struct and the separate parse step. Argument parsing and printing is now common to all commands (in arguments.c) with each command left with just an optional check function (to validate the arguments at parse time), the exec function and a function to set up any key bindings (renamed from the old init function). This is overall more simple and consistent. There should be no changes to any commands behaviour or syntax although as this touches every command please watch for any unexpected changes.
2011-01-07 14:45:34 +00:00
if (!args_has(args, 'b')) {
Global paste buffers instead of per-session which renders copy-buffer useless. As a consequence buffer-limit is now a server option.
2010-12-30 22:39:49 +00:00
paste_add(&global_buffers, pdata, psize, limit);
Sync OpenBSD patchset 1151: Make command exec functions return an enum rather than -1/0/1 values and add a new value to mean "leave client running but don't attach" to fix problems with using some commands in a command sequence. Most of the work by Thomas Adam, problem reported by "jspenguin" on SF bug 3535531.
2012-07-11 19:37:32 +00:00
return (CMD_RETURN_NORMAL);
Make the caller responsible for allocating memory for the paste buffer data (needed by the load-buffer command when dealing with big files since it'll prevent tmux from dying due to memory exhaustion). From nicm.
2009-01-25 18:51:28 +00:00
}
Sync OpenBSD patchset 829: Clean up and simplify tmux command argument parsing. Originally, tmux commands were parsed in the client process into a struct with the command data which was then serialised and sent to the server to be executed. The parsing was later moved into the server (an argv was sent from the client), but the parse step and intermediate struct was kept. This change removes that struct and the separate parse step. Argument parsing and printing is now common to all commands (in arguments.c) with each command left with just an optional check function (to validate the arguments at parse time), the exec function and a function to set up any key bindings (renamed from the old init function). This is overall more simple and consistent. There should be no changes to any commands behaviour or syntax although as this touches every command please watch for any unexpected changes.
2011-01-07 14:45:34 +00:00
buffer = args_strtonum(args, 'b', 0, INT_MAX, &cause);
if (cause != NULL) {
Add a command queue to standardize and simplify commands that call other commands and allow a command to block execution of subsequent commands. This allows run-shell and if-shell to be synchronous which has been much requested. Each client has a default command queue and commands are consumed one at a time from it. A command may suspend execution from the queue by returning CMD_RETURN_WAIT and then resume it by calling cmd_continue() - for example run-shell does this from the callback that is fired after the job is freed. When the command queue becomes empty, command clients are automatically exited (unless attaching). A callback is also fired - this is used for nested commands in, for example, if-shell which can block execution of the client's cmdq until a new cmdq becomes empty. Also merge all the old error/info/print functions together and lose the old curclient/cmdclient distinction - a cmdq is bound to one client (or none if in the configuration file), this is a command client if c->session is NULL otherwise an attached client.
2013-02-23 22:25:58 +00:00
cmdq_error(cmdq, "buffer %s", cause);
Sync OpenBSD patchset 1150: xfree is not particularly helpful, remove it. From Thomas Adam.
2012-07-11 19:34:16 +00:00
free(cause);
free(pdata);
Sync OpenBSD patchset 1151: Make command exec functions return an enum rather than -1/0/1 values and add a new value to mean "leave client running but don't attach" to fix problems with using some commands in a command sequence. Most of the work by Thomas Adam, problem reported by "jspenguin" on SF bug 3535531.
2012-07-11 19:37:32 +00:00
return (CMD_RETURN_ERROR);
Sync OpenBSD patchset 829: Clean up and simplify tmux command argument parsing. Originally, tmux commands were parsed in the client process into a struct with the command data which was then serialised and sent to the server to be executed. The parsing was later moved into the server (an argv was sent from the client), but the parse step and intermediate struct was kept. This change removes that struct and the separate parse step. Argument parsing and printing is now common to all commands (in arguments.c) with each command left with just an optional check function (to validate the arguments at parse time), the exec function and a function to set up any key bindings (renamed from the old init function). This is overall more simple and consistent. There should be no changes to any commands behaviour or syntax although as this touches every command please watch for any unexpected changes.
2011-01-07 14:45:34 +00:00
}
if (paste_replace(&global_buffers, buffer, pdata, psize) != 0) {
Add a command queue to standardize and simplify commands that call other commands and allow a command to block execution of subsequent commands. This allows run-shell and if-shell to be synchronous which has been much requested. Each client has a default command queue and commands are consumed one at a time from it. A command may suspend execution from the queue by returning CMD_RETURN_WAIT and then resume it by calling cmd_continue() - for example run-shell does this from the callback that is fired after the job is freed. When the command queue becomes empty, command clients are automatically exited (unless attaching). A callback is also fired - this is used for nested commands in, for example, if-shell which can block execution of the client's cmdq until a new cmdq becomes empty. Also merge all the old error/info/print functions together and lose the old curclient/cmdclient distinction - a cmdq is bound to one client (or none if in the configuration file), this is a command client if c->session is NULL otherwise an attached client.
2013-02-23 22:25:58 +00:00
cmdq_error(cmdq, "no buffer %d", buffer);
Sync OpenBSD patchset 1150: xfree is not particularly helpful, remove it. From Thomas Adam.
2012-07-11 19:34:16 +00:00
free(pdata);
Sync OpenBSD patchset 1151: Make command exec functions return an enum rather than -1/0/1 values and add a new value to mean "leave client running but don't attach" to fix problems with using some commands in a command sequence. Most of the work by Thomas Adam, problem reported by "jspenguin" on SF bug 3535531.
2012-07-11 19:37:32 +00:00
return (CMD_RETURN_ERROR);
Start of improved buffer code. Only set-buffer/show-buffer commands so far.
2008-06-20 08:36:20 +00:00
}
Sync OpenBSD patchset 829: Clean up and simplify tmux command argument parsing. Originally, tmux commands were parsed in the client process into a struct with the command data which was then serialised and sent to the server to be executed. The parsing was later moved into the server (an argv was sent from the client), but the parse step and intermediate struct was kept. This change removes that struct and the separate parse step. Argument parsing and printing is now common to all commands (in arguments.c) with each command left with just an optional check function (to validate the arguments at parse time), the exec function and a function to set up any key bindings (renamed from the old init function). This is overall more simple and consistent. There should be no changes to any commands behaviour or syntax although as this touches every command please watch for any unexpected changes.
2011-01-07 14:45:34 +00:00
Sync OpenBSD patchset 1151: Make command exec functions return an enum rather than -1/0/1 values and add a new value to mean "leave client running but don't attach" to fix problems with using some commands in a command sequence. Most of the work by Thomas Adam, problem reported by "jspenguin" on SF bug 3535531.
2012-07-11 19:37:32 +00:00
return (CMD_RETURN_NORMAL);
Start of improved buffer code. Only set-buffer/show-buffer commands so far.
2008-06-20 08:36:20 +00:00
}
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