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libvirt/tools/vsh.h

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tools: Introduce new client generic module vsh In order to share as much virsh' logic as possible with upcomming virt-admin client we need to split virsh logic into virsh specific and client generic features. Since majority of virsh methods should be generic enough to be used by other clients, it's much easier to rename virsh specific data to virshX than doing this vice versa. It moved generic virsh commands (including info and opts structures) to generic module vsh.c. Besides renaming methods and structures, this patch also involves introduction of a client specific control structure being referenced as private data in the original control structure, introduction of a new global vsh Initializer, which currently doesn't do much, but there is a potential for added functionality in the future. Lastly it introduced client hooks which are especially necessary during client connecting phase.
2015-06-15 16:53:58 +00:00
/*
* vsh.h: common data to be used by clients to exercise the libvirt API
*
* Copyright (C) 2005, 2007-2015 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
* Daniel Veillard <veillard@redhat.com>
* Karel Zak <kzak@redhat.com>
* Daniel P. Berrange <berrange@redhat.com>
*/
#ifndef VSH_H
# define VSH_H
# include <stdio.h>
# include <stdlib.h>
# include <string.h>
# include <stdarg.h>
# include <unistd.h>
# include <sys/stat.h>
# include <termios.h>
# include "internal.h"
# include "virerror.h"
# include "virthread.h"
# define VIR_FROM_THIS VIR_FROM_NONE
# define GETTIMEOFDAY(T) gettimeofday(T, NULL)
# define VSH_MAX_XML_FILE (10*1024*1024)
# define VSH_MATCH(FLAG) (flags & (FLAG))
/**
* The log configuration
*/
# define MSG_BUFFER 4096
# define DIR_MODE (S_IWUSR | S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) /* 0755 */
# define FILE_MODE (S_IWUSR | S_IRUSR | S_IRGRP | S_IROTH) /* 0644 */
# define LOCK_MODE (S_IWUSR | S_IRUSR) /* 0600 */
# define LVL_DEBUG "DEBUG"
# define LVL_INFO "INFO"
# define LVL_NOTICE "NOTICE"
# define LVL_WARNING "WARNING"
# define LVL_ERROR "ERROR"
/**
* vshErrorLevel:
*
* Indicates the level of a log message
*/
typedef enum {
VSH_ERR_DEBUG = 0,
VSH_ERR_INFO,
VSH_ERR_NOTICE,
VSH_ERR_WARNING,
VSH_ERR_ERROR
} vshErrorLevel;
# define VSH_DEBUG_DEFAULT VSH_ERR_ERROR
/*
* virsh command line grammar:
*
* command_line = <command>\n | <command>; <command>; ...
*
* command = <keyword> <option> [--] <data>
*
* option = <bool_option> | <int_option> | <string_option>
* data = <string>
*
* bool_option = --optionname
* int_option = --optionname <number> | --optionname=<number>
* string_option = --optionname <string> | --optionname=<string>
*
* keyword = [a-zA-Z][a-zA-Z-]*
* number = [0-9]+
* string = ('[^']*'|"([^\\"]|\\.)*"|([^ \t\n\\'"]|\\.))+
*
*/
/*
* vshCmdOptType - command option type
*/
typedef enum {
VSH_OT_BOOL, /* optional boolean option */
VSH_OT_STRING, /* optional string option */
VSH_OT_INT, /* optional or mandatory int option */
VSH_OT_DATA, /* string data (as non-option) */
VSH_OT_ARGV, /* remaining arguments */
VSH_OT_ALIAS, /* alternate spelling for a later argument */
} vshCmdOptType;
/*
* Command Option Flags
*/
enum {
VSH_OFLAG_NONE = 0, /* without flags */
VSH_OFLAG_REQ = (1 << 0), /* option required */
VSH_OFLAG_EMPTY_OK = (1 << 1), /* empty string option allowed */
VSH_OFLAG_REQ_OPT = (1 << 2), /* --optionname required */
};
/* forward declarations */
typedef struct _vshClientHooks vshClientHooks;
typedef struct _vshCmd vshCmd;
typedef struct _vshCmdDef vshCmdDef;
typedef struct _vshCmdGrp vshCmdGrp;
typedef struct _vshCmdInfo vshCmdInfo;
typedef struct _vshCmdOpt vshCmdOpt;
typedef struct _vshCmdOptDef vshCmdOptDef;
typedef struct _vshControl vshControl;
tools: Pass opaque data in vshCompleter and introduce autoCompleteOpaque This patch changes the signature of vshCompleters, allowing to pass along some data that we might want to along with the completers; for example, we might want to pass the autocomplete vshControl along with the completer, in case the completer requires a connection to libvirtd. Signed-off-by: Nishith Shah <nishithshah.2211@gmail.com> Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-09-06 12:04:37 +00:00
typedef char **(*vshCompleter)(void *opaque, unsigned int flags);
tools: Introduce new client generic module vsh In order to share as much virsh' logic as possible with upcomming virt-admin client we need to split virsh logic into virsh specific and client generic features. Since majority of virsh methods should be generic enough to be used by other clients, it's much easier to rename virsh specific data to virshX than doing this vice versa. It moved generic virsh commands (including info and opts structures) to generic module vsh.c. Besides renaming methods and structures, this patch also involves introduction of a client specific control structure being referenced as private data in the original control structure, introduction of a new global vsh Initializer, which currently doesn't do much, but there is a potential for added functionality in the future. Lastly it introduced client hooks which are especially necessary during client connecting phase.
2015-06-15 16:53:58 +00:00
/*
* vshCmdInfo -- name/value pair for information about command
*
* Commands should have at least the following names:
* "help" - short description of command
* "desc" - description of command, or empty string
*/
struct _vshCmdInfo {
const char *name; /* name of information, or NULL for list end */
const char *data; /* non-NULL information */
};
/*
* vshCmdOptDef - command option definition
*/
struct _vshCmdOptDef {
const char *name; /* the name of option, or NULL for list end */
vshCmdOptType type; /* option type */
unsigned int flags; /* flags */
const char *help; /* non-NULL help string; or for VSH_OT_ALIAS
* the name of a later public option */
vshCompleter completer; /* option completer */
unsigned int completer_flags; /* option completer flags */
};
/*
* vshCmdOpt - command options
*
* After parsing a command, all arguments to the command have been
* collected into a list of these objects.
*/
struct _vshCmdOpt {
const vshCmdOptDef *def; /* non-NULL pointer to option definition */
char *data; /* allocated data, or NULL for bool option */
vshCmdOpt *next;
};
/*
* Command Usage Flags
*/
enum {
VSH_CMD_FLAG_NOCONNECT = (1 << 0), /* no prior connection needed */
VSH_CMD_FLAG_ALIAS = (1 << 1), /* command is an alias */
};
/*
* vshCmdDef - command definition
*/
struct _vshCmdDef {
const char *name; /* name of command, or NULL for list end */
bool (*handler) (vshControl *, const vshCmd *); /* command handler */
const vshCmdOptDef *opts; /* definition of command options */
const vshCmdInfo *info; /* details about command */
unsigned int flags; /* bitwise OR of VSH_CMD_FLAG */
};
/*
* vshCmd - parsed command
*/
struct _vshCmd {
const vshCmdDef *def; /* command definition */
vshCmdOpt *opts; /* list of command arguments */
vshCmd *next; /* next command */
};
/*
* vshControl
*/
struct _vshControl {
const char *name; /* hardcoded name of the binary that cannot
* be changed without recompilation compared
* to program name */
tools: Make use of the correct environment variables Since commit 834c5720 which extracted the generic functionality out of virsh and made it available for other clients like virt-admin to make use of it, it also introduced a bug when it renamed the original VIRSH_ environment variables to VSH_ variables. Virt-admin of course suffers from the same bug, so this patch modifies the generic module vsh.c to construct the correct name for environment variables of each client from information it has. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1357363 Signed-off-by: Erik Skultety <eskultet@redhat.com>
2016-07-28 10:54:16 +00:00
const char *env_prefix; /* hardcoded environment variable prefix */
Revert "admin: Rename virAdmConnect to virAdmDaemon" Commmit df8192aa introduced admin related rename and some minor (caused by automated approach, aka sed) and some more severe isues along with it. First reason to revert is the inconsistency with libvirt library. Although we deal with the daemon directly rather than with a specific hypervisor, we still do have a connection. That being said, contributors might get under the impression that AdmDaemonNew would spawn/start a new daemon (since it's admin API, why not...), or AdmDaemonClose would do the exact opposite or they might expect DaemonIsAlive report overall status of the daemon which definitely isn't the case. The second reason to revert this patch is renaming virt-admin client. The client tool does not necessarily have to reflect the names of the API's it's using in his internals. An example would be 's/vshAdmConnect/vshAdmDaemon' where noone can be certain of what the latter function really does. The former is quite expressive about some connection magic it performs, but the latter does not say anything, especially when vshAdmReconnect and vshAdmDisconnect were left untouched.
2015-12-10 12:46:45 +00:00
char *connname; /* connection name */
tools: Introduce new client generic module vsh In order to share as much virsh' logic as possible with upcomming virt-admin client we need to split virsh logic into virsh specific and client generic features. Since majority of virsh methods should be generic enough to be used by other clients, it's much easier to rename virsh specific data to virshX than doing this vice versa. It moved generic virsh commands (including info and opts structures) to generic module vsh.c. Besides renaming methods and structures, this patch also involves introduction of a client specific control structure being referenced as private data in the original control structure, introduction of a new global vsh Initializer, which currently doesn't do much, but there is a potential for added functionality in the future. Lastly it introduced client hooks which are especially necessary during client connecting phase.
2015-06-15 16:53:58 +00:00
char *progname; /* program name */
vshCmd *cmd; /* the current command */
char *cmdstr; /* string with command */
bool imode; /* interactive mode? */
bool quiet; /* quiet mode */
bool timing; /* print timing info? */
int debug; /* print debug messages? */
char *logfile; /* log file name */
int log_fd; /* log file descriptor */
char *historydir; /* readline history directory name */
char *historyfile; /* readline history file name */
virThread eventLoop;
virMutex lock;
bool eventLoopStarted;
bool quit;
int eventPipe[2]; /* Write-to-self pipe to end waiting for an
* event to occur */
int eventTimerId; /* id of event loop timeout registration */
int keepalive_interval; /* Client keepalive interval */
int keepalive_count; /* Client keepalive count */
# ifndef WIN32
struct termios termattr; /* settings of the tty terminal */
# endif
bool istty; /* is the terminal a tty */
const vshClientHooks *hooks;/* mandatory client specific hooks */
void *privData; /* client specific data */
};
typedef void *
(*vshConnectionHook)(vshControl *ctl);
struct _vshClientHooks {
vshConnectionHook connHandler;
};
struct _vshCmdGrp {
const char *name; /* name of group, or NULL for list end */
const char *keyword; /* help keyword */
const vshCmdDef *commands;
};
void vshError(vshControl *ctl, const char *format, ...)
ATTRIBUTE_FMT_PRINTF(2, 3);
void vshOpenLogFile(vshControl *ctl);
void vshOutputLogFile(vshControl *ctl, int log_level, const char *format,
va_list ap)
ATTRIBUTE_FMT_PRINTF(3, 0);
void vshCloseLogFile(vshControl *ctl);
const char *vshCmddefGetInfo(const vshCmdDef *cmd, const char *info);
const vshCmdDef *vshCmddefSearch(const char *cmdname);
bool vshCmddefHelp(vshControl *ctl, const char *name);
const vshCmdGrp *vshCmdGrpSearch(const char *grpname);
bool vshCmdGrpHelp(vshControl *ctl, const char *name);
int vshCommandOptInt(vshControl *ctl, const vshCmd *cmd,
const char *name, int *value)
ATTRIBUTE_NONNULL(4) ATTRIBUTE_RETURN_CHECK;
int vshCommandOptUInt(vshControl *ctl, const vshCmd *cmd,
const char *name, unsigned int *value)
ATTRIBUTE_NONNULL(4) ATTRIBUTE_RETURN_CHECK;
int vshCommandOptUIntWrap(vshControl *ctl, const vshCmd *cmd,
const char *name, unsigned int *value)
ATTRIBUTE_NONNULL(4) ATTRIBUTE_RETURN_CHECK;
int vshCommandOptUL(vshControl *ctl, const vshCmd *cmd,
const char *name, unsigned long *value)
ATTRIBUTE_NONNULL(4) ATTRIBUTE_RETURN_CHECK;
int vshCommandOptULWrap(vshControl *ctl, const vshCmd *cmd,
const char *name, unsigned long *value)
ATTRIBUTE_NONNULL(4) ATTRIBUTE_RETURN_CHECK;
virsh: rename vshCommandOptString to vshCommandOptStringQuiet This function does not set an error. Make it obvious in its name to discourage its usage without reporting an error in the caller.
2015-12-03 12:47:56 +00:00
int vshCommandOptStringQuiet(vshControl *ctl, const vshCmd *cmd,
const char *name, const char **value)
tools: Introduce new client generic module vsh In order to share as much virsh' logic as possible with upcomming virt-admin client we need to split virsh logic into virsh specific and client generic features. Since majority of virsh methods should be generic enough to be used by other clients, it's much easier to rename virsh specific data to virshX than doing this vice versa. It moved generic virsh commands (including info and opts structures) to generic module vsh.c. Besides renaming methods and structures, this patch also involves introduction of a client specific control structure being referenced as private data in the original control structure, introduction of a new global vsh Initializer, which currently doesn't do much, but there is a potential for added functionality in the future. Lastly it introduced client hooks which are especially necessary during client connecting phase.
2015-06-15 16:53:58 +00:00
ATTRIBUTE_NONNULL(4) ATTRIBUTE_RETURN_CHECK;
int vshCommandOptStringReq(vshControl *ctl, const vshCmd *cmd,
const char *name, const char **value)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3)
ATTRIBUTE_NONNULL(4) ATTRIBUTE_RETURN_CHECK;
int vshCommandOptLongLong(vshControl *ctl, const vshCmd *cmd,
const char *name, long long *value)
ATTRIBUTE_NONNULL(4) ATTRIBUTE_RETURN_CHECK;
int vshCommandOptULongLong(vshControl *ctl, const vshCmd *cmd,
const char *name, unsigned long long *value)
ATTRIBUTE_NONNULL(4) ATTRIBUTE_RETURN_CHECK;
int vshCommandOptULongLongWrap(vshControl *ctl, const vshCmd *cmd,
const char *name, unsigned long long *value)
ATTRIBUTE_NONNULL(4) ATTRIBUTE_RETURN_CHECK;
int vshCommandOptScaledInt(vshControl *ctl, const vshCmd *cmd,
const char *name, unsigned long long *value,
int scale, unsigned long long max)
ATTRIBUTE_NONNULL(4) ATTRIBUTE_RETURN_CHECK;
vsh: Introduce helper to parse --bandwidth Historically we've used 'unsigned long' and allowed wrapping of negative numbers for bandwidth values. Add a helper that will simplify adding support for scaled integers and support for byte granularity while keeping the compatibility with the older approach.
2016-03-29 13:47:40 +00:00
int vshBlockJobOptionBandwidth(vshControl *ctl,
const vshCmd *cmd,
bool bytes,
unsigned long *bandwidth);
tools: Introduce new client generic module vsh In order to share as much virsh' logic as possible with upcomming virt-admin client we need to split virsh logic into virsh specific and client generic features. Since majority of virsh methods should be generic enough to be used by other clients, it's much easier to rename virsh specific data to virshX than doing this vice versa. It moved generic virsh commands (including info and opts structures) to generic module vsh.c. Besides renaming methods and structures, this patch also involves introduction of a client specific control structure being referenced as private data in the original control structure, introduction of a new global vsh Initializer, which currently doesn't do much, but there is a potential for added functionality in the future. Lastly it introduced client hooks which are especially necessary during client connecting phase.
2015-06-15 16:53:58 +00:00
bool vshCommandOptBool(const vshCmd *cmd, const char *name);
bool vshCommandRun(vshControl *ctl, const vshCmd *cmd);
bool vshCommandStringParse(vshControl *ctl, char *cmdstr);
const vshCmdOpt *vshCommandOptArgv(vshControl *ctl, const vshCmd *cmd,
const vshCmdOpt *opt);
bool vshCommandArgvParse(vshControl *ctl, int nargs, char **argv);
int vshCommandOptTimeoutToMs(vshControl *ctl, const vshCmd *cmd, int *timeout);
vsh: Replace vshPrint macro with function The macro would eat the first parameter. In some cases the format string for vshPrint was eaten. In other cases the calls referenced variables which did not exist in the given context. Avoid errors by doing compile time checking.
2016-02-12 13:09:02 +00:00
void vshPrint(vshControl *ctl, const char *format, ...)
ATTRIBUTE_FMT_PRINTF(2, 3);
tools: Introduce new client generic module vsh In order to share as much virsh' logic as possible with upcomming virt-admin client we need to split virsh logic into virsh specific and client generic features. Since majority of virsh methods should be generic enough to be used by other clients, it's much easier to rename virsh specific data to virshX than doing this vice versa. It moved generic virsh commands (including info and opts structures) to generic module vsh.c. Besides renaming methods and structures, this patch also involves introduction of a client specific control structure being referenced as private data in the original control structure, introduction of a new global vsh Initializer, which currently doesn't do much, but there is a potential for added functionality in the future. Lastly it introduced client hooks which are especially necessary during client connecting phase.
2015-06-15 16:53:58 +00:00
void vshPrintExtra(vshControl *ctl, const char *format, ...)
ATTRIBUTE_FMT_PRINTF(2, 3);
vsh: adjust vshInit signature and remove redundant error label As part of the effort to stay consistent, change the vshInit signature from returning int to returning bool. Moreover, remove the unnecessary error label as there is no cleanup that would make use of it.
2015-09-03 14:52:44 +00:00
bool vshInit(vshControl *ctl, const vshCmdGrp *groups, const vshCmdDef *set);
vsh: Introduce vshInitReload Commit a0b6a36f separated vshInitDebug from the original vshInit (before virsh got split and vshInit became virshInit - commit 834c5720) in order to be able to debug command line parsing. After the parsing is finished, debugging is reinitialized to work properly. There might as well be other features that require re-initialization as the command line could specify parameters that override our defaults which had been set prior to calling vshArgvParse.
2015-09-03 14:59:01 +00:00
bool vshInitReload(vshControl *ctl);
tools: Introduce new client generic module vsh In order to share as much virsh' logic as possible with upcomming virt-admin client we need to split virsh logic into virsh specific and client generic features. Since majority of virsh methods should be generic enough to be used by other clients, it's much easier to rename virsh specific data to virshX than doing this vice versa. It moved generic virsh commands (including info and opts structures) to generic module vsh.c. Besides renaming methods and structures, this patch also involves introduction of a client specific control structure being referenced as private data in the original control structure, introduction of a new global vsh Initializer, which currently doesn't do much, but there is a potential for added functionality in the future. Lastly it introduced client hooks which are especially necessary during client connecting phase.
2015-06-15 16:53:58 +00:00
void vshDeinit(vshControl *ctl);
void vshDebug(vshControl *ctl, int level, const char *format, ...)
ATTRIBUTE_FMT_PRINTF(3, 4);
/* User visible sort, so we want locale-specific case comparison. */
# define vshStrcasecmp(S1, S2) strcasecmp(S1, S2)
int vshNameSorter(const void *a, const void *b);
virTypedParameterPtr vshFindTypedParamByName(const char *name,
virTypedParameterPtr list,
int count);
char *vshGetTypedParamValue(vshControl *ctl, virTypedParameterPtr item)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
double vshPrettyCapacity(unsigned long long val, const char **unit);
int vshStringToArray(const char *str, char ***array);
/* Given an index, return either the name of that device (non-NULL) or
* of its parent (NULL if a root). */
typedef const char * (*vshTreeLookup)(int devid, bool parent, void *opaque);
int vshTreePrint(vshControl *ctl, vshTreeLookup lookup, void *opaque,
int num_devices, int devid);
/* error handling */
extern virErrorPtr last_error;
void vshErrorHandler(void *opaque, virErrorPtr error);
void vshReportError(vshControl *ctl);
void vshResetLibvirtError(void);
void vshSaveLibvirtError(void);
/* file handling */
char *vshEditWriteToTempFile(vshControl *ctl, const char *doc);
int vshEditFile(vshControl *ctl, const char *filename);
char *vshEditReadBackFile(vshControl *ctl, const char *filename);
int vshAskReedit(vshControl *ctl, const char *msg, bool relax_avail);
/* terminal modifications */
bool vshTTYIsInterruptCharacter(vshControl *ctl, const char chr);
int vshTTYDisableInterrupt(vshControl *ctl);
int vshTTYRestore(vshControl *ctl);
int vshTTYMakeRaw(vshControl *ctl, bool report_errors);
bool vshTTYAvailable(vshControl *ctl);
/* waiting for events */
enum {
VSH_EVENT_INTERRUPT,
VSH_EVENT_TIMEOUT,
VSH_EVENT_DONE,
};
void vshEventCleanup(vshControl *ctl);
void vshEventDone(vshControl *ctl);
void vshEventLoop(void *opaque);
int vshEventStart(vshControl *ctl, int timeout_ms);
void vshEventTimeout(int timer, void *opaque);
int vshEventWait(vshControl *ctl);
/* generic commands */
extern const vshCmdOptDef opts_help[];
extern const vshCmdInfo info_help[];
extern const vshCmdOptDef opts_cd[];
extern const vshCmdInfo info_cd[];
extern const vshCmdOptDef opts_echo[];
extern const vshCmdInfo info_echo[];
extern const vshCmdInfo info_pwd[];
extern const vshCmdInfo info_quit[];
bool cmdHelp(vshControl *ctl, const vshCmd *cmd);
bool cmdCd(vshControl *ctl, const vshCmd *cmd);
bool cmdEcho(vshControl *ctl, const vshCmd *cmd);
bool cmdPwd(vshControl *ctl, const vshCmd *cmd);
bool cmdQuit(vshControl *ctl, const vshCmd *cmd);
# define VSH_CMD_CD \
{ \
.name = "cd", \
.handler = cmdCd, \
.opts = opts_cd, \
.info = info_cd, \
.flags = VSH_CMD_FLAG_NOCONNECT \
}
# define VSH_CMD_ECHO \
{ \
.name = "echo", \
.handler = cmdEcho, \
.opts = opts_echo, \
.info = info_echo, \
.flags = VSH_CMD_FLAG_NOCONNECT \
}
# define VSH_CMD_EXIT \
{ \
.name = "exit", \
.handler = cmdQuit, \
.opts = NULL, \
.info = info_quit, \
.flags = VSH_CMD_FLAG_NOCONNECT \
}
# define VSH_CMD_HELP \
{ \
.name = "help", \
.handler = cmdHelp, \
.opts = opts_help, \
.info = info_help, \
.flags = VSH_CMD_FLAG_NOCONNECT \
}
# define VSH_CMD_PWD \
{ \
.name = "pwd", \
.handler = cmdPwd, \
.opts = NULL, \
.info = info_pwd, \
.flags = VSH_CMD_FLAG_NOCONNECT \
}
# define VSH_CMD_QUIT \
{ \
.name = "quit", \
.handler = cmdQuit, \
.opts = NULL, \
.info = info_quit, \
.flags = VSH_CMD_FLAG_NOCONNECT \
}
/* readline */
char * vshReadline(vshControl *ctl, const char *prompt);
/* allocation wrappers */
void *_vshMalloc(vshControl *ctl, size_t sz, const char *filename, int line);
# define vshMalloc(_ctl, _sz) _vshMalloc(_ctl, _sz, __FILE__, __LINE__)
void *_vshCalloc(vshControl *ctl, size_t nmemb, size_t sz,
const char *filename, int line);
# define vshCalloc(_ctl, _nmemb, _sz) \
_vshCalloc(_ctl, _nmemb, _sz, __FILE__, __LINE__)
char *_vshStrdup(vshControl *ctl, const char *s, const char *filename,
int line);
# define vshStrdup(_ctl, _s) _vshStrdup(_ctl, _s, __FILE__, __LINE__)
/* Macros to help dealing with mutually exclusive options. */
/* VSH_EXCLUSIVE_OPTIONS_EXPR:
*
* @NAME1: String containing the name of the option.
* @EXPR1: Expression to validate the variable (boolean variable)
* @NAME2: String containing the name of the option.
* @EXPR2: Expression to validate the variable (boolean variable)
*
* Reject mutually exclusive command options in virsh. Use the
* provided expression to check the variables.
*
* This helper does an early return and therefore it has to be called
* before anything that would require cleanup.
*/
# define VSH_EXCLUSIVE_OPTIONS_EXPR(NAME1, EXPR1, NAME2, EXPR2) \
if ((EXPR1) && (EXPR2)) { \
vshError(ctl, _("Options --%s and --%s are mutually exclusive"), \
NAME1, NAME2); \
return false; \
}
/* VSH_EXCLUSIVE_OPTIONS:
*
* @NAME1: String containing the name of the option.
* @NAME2: String containing the name of the option.
*
* Reject mutually exclusive command options in virsh. Use the
* vshCommandOptBool call to request them.
*
* This helper does an early return and therefore it has to be called
* before anything that would require cleanup.
*/
# define VSH_EXCLUSIVE_OPTIONS(NAME1, NAME2) \
VSH_EXCLUSIVE_OPTIONS_EXPR(NAME1, vshCommandOptBool(cmd, NAME1), \
NAME2, vshCommandOptBool(cmd, NAME2))
/* VSH_EXCLUSIVE_OPTIONS_VAR:
*
* @VARNAME1: Boolean variable containing the value of the option of same name
* @VARNAME2: Boolean variable containing the value of the option of same name
*
* Reject mutually exclusive command options in virsh. Check in variables that
* contain the value and have same name as the option.
*
* This helper does an early return and therefore it has to be called
* before anything that would require cleanup.
*/
# define VSH_EXCLUSIVE_OPTIONS_VAR(VARNAME1, VARNAME2) \
VSH_EXCLUSIVE_OPTIONS_EXPR(#VARNAME1, VARNAME1, #VARNAME2, VARNAME2)
/* Macros to help dealing with required options. */
/* VSH_REQUIRE_OPTION_EXPR:
*
* @NAME1: String containing the name of the option.
* @EXPR1: Expression to validate the variable (boolean variable).
* @NAME2: String containing the name of required option.
* @EXPR2: Expression to validate the variable (boolean variable).
*
* Check if required command options in virsh was set. Use the
* provided expression to check the variables.
*
* This helper does an early return and therefore it has to be called
* before anything that would require cleanup.
*/
# define VSH_REQUIRE_OPTION_EXPR(NAME1, EXPR1, NAME2, EXPR2) \
do { \
if ((EXPR1) && !(EXPR2)) { \
vshError(ctl, _("Option --%s is required by option --%s"), \
NAME2, NAME1); \
return false; \
} \
} while (0)
/* VSH_REQUIRE_OPTION:
*
* @NAME1: String containing the name of the option.
* @NAME2: String containing the name of required option.
*
* Check if required command options in virsh was set. Use the
* vshCommandOptBool call to request them.
*
* This helper does an early return and therefore it has to be called
* before anything that would require cleanup.
*/
# define VSH_REQUIRE_OPTION(NAME1, NAME2) \
VSH_REQUIRE_OPTION_EXPR(NAME1, vshCommandOptBool(cmd, NAME1), \
NAME2, vshCommandOptBool(cmd, NAME2))
/* VSH_REQUIRE_OPTION_VAR:
*
* @VARNAME1: Boolean variable containing the value of the option of same name.
* @VARNAME2: Boolean variable containing the value of required option of
* same name.
*
* Check if required command options in virsh was set. Check in variables
* that contain the value and have same name as the option.
*
* This helper does an early return and therefore it has to be called
* before anything that would require cleanup.
*/
# define VSH_REQUIRE_OPTION_VAR(VARNAME1, VARNAME2) \
VSH_REQUIRE_OPTION_EXPR(#VARNAME1, VARNAME1, #VARNAME2, VARNAME2)
#endif /* VSH_H */
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