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authordas <das>2008-05-03 21:09:16 (GMT)
committerdas <das>2008-05-03 21:09:16 (GMT)
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parented3d223d8d8f213502b090bcd26eca347ec06496 (diff)
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sync with dkf's 2008-04-27 whitespace&formatting changes on HEAD, to ease branch maintenance.
Diffstat (limited to 'macosx/tkMacOSXSend.c')
-rw-r--r--macosx/tkMacOSXSend.c391
1 files changed, 190 insertions, 201 deletions
diff --git a/macosx/tkMacOSXSend.c b/macosx/tkMacOSXSend.c
index c65833b..85e23b2 100644
--- a/macosx/tkMacOSXSend.c
+++ b/macosx/tkMacOSXSend.c
@@ -1,175 +1,171 @@
/*
* tkMacOSXSend.c --
*
- * This file provides procedures that implement the "send"
- * command, allowing commands to be passed from interpreter
- * to interpreter. This current implementation for the Mac
- * has most functionality stubed out.
- *
- * The current plan, which we have not had time to implement, is
- * for the first Wish app to create a gestalt of type 'WIsH'.
- * This gestalt will point to a table, in system memory, of
- * Tk apps. Each Tk app, when it starts up, will register their
- * name, and process ID, in this table. This will allow us to
- * implement "tk appname".
- *
- * Then the send command will look up the process id of the target
- * app in this table, and send an AppleEvent to that process. The
- * AppleEvent handler is much like the do script handler, except that
- * you have to specify the name of the tk app as well, since there may
- * be many interps in one wish app, and you need to send it to the
- * right one.
- *
- * Implementing this has been on our list of things to do, but what
- * with the demise of Tcl at Sun, and the lack of resources at
- * Scriptics it may not get done for awhile. So this sketch is
- * offered for the brave to attempt if they need the functionality...
+ * This file provides procedures that implement the "send" command,
+ * allowing commands to be passed from interpreter to interpreter. This
+ * current implementation for the Mac has most functionality stubed out.
+ *
+ * The current plan, which we have not had time to implement, is for the
+ * first Wish app to create a gestalt of type 'WIsH'. This gestalt will
+ * point to a table, in system memory, of Tk apps. Each Tk app, when it
+ * starts up, will register their name, and process ID, in this table.
+ * This will allow us to implement "tk appname".
+ *
+ * Then the send command will look up the process id of the target app in
+ * this table, and send an AppleEvent to that process. The AppleEvent
+ * handler is much like the do script handler, except that you have to
+ * specify the name of the tk app as well, since there may be many
+ * interps in one wish app, and you need to send it to the right one.
+ *
+ * Implementing this has been on our list of things to do, but what with
+ * the demise of Tcl at Sun, and the lack of resources at Scriptics it
+ * may not get done for awhile. So this sketch is offered for the brave
+ * to attempt if they need the functionality...
*
* Copyright (c) 1989-1994 The Regents of the University of California.
* Copyright (c) 1994-1998 Sun Microsystems, Inc.
* Copyright 2001, Apple Computer, Inc.
* Copyright (c) 2005-2007 Daniel A. Steffen <das@users.sourceforge.net>
*
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tkMacOSXSend.c,v 1.8 2007/12/13 15:27:10 dgp Exp $
+ * RCS: @(#) $Id: tkMacOSXSend.c,v 1.8.2.1 2008/05/03 21:09:16 das Exp $
*/
#include "tkMacOSXInt.h"
/*
- * The following structure is used to keep track of the
- * interpreters registered by this process.
+ * The following structure is used to keep track of the interpreters
+ * registered by this process.
*/
typedef struct RegisteredInterp {
char *name; /* Interpreter's name (malloc-ed). */
- Tcl_Interp *interp; /* Interpreter associated with
- * name. */
+ Tcl_Interp *interp; /* Interpreter associated with name. */
struct RegisteredInterp *nextPtr;
- /* Next in list of names associated
- * with interps in this process.
- * NULL means end of list. */
+ /* Next in list of names associated with
+ * interps in this process. NULL means end of
+ * list. */
} RegisteredInterp;
/*
- * A registry of all interpreters for a display is kept in a
- * property "InterpRegistry" on the root window of the display.
- * It is organized as a series of zero or more concatenated strings
- * (in no particular order), each of the form
+ * A registry of all interpreters for a display is kept in a property
+ * "InterpRegistry" on the root window of the display. It is organized as a
+ * series of zero or more concatenated strings (in no particular order), each
+ * of the form
* window space name '\0'
- * where "window" is the hex id of the comm. window to use to talk
- * to an interpreter named "name".
+ * where "window" is the hex id of the comm. window to use to talk to an
+ * interpreter named "name".
*
- * When the registry is being manipulated by an application (e.g. to
- * add or remove an entry), it is loaded into memory using a structure
- * of the following type:
+ * When the registry is being manipulated by an application (e.g. to add or
+ * remove an entry), it is loaded into memory using a structure of the
+ * following type:
*/
typedef struct NameRegistry {
TkDisplay *dispPtr; /* Display from which the registry was
* read. */
- int locked; /* Non-zero means that the display was
- * locked when the property was read in. */
- int modified; /* Non-zero means that the property has
- * been modified, so it needs to be written
- * out when the NameRegistry is closed. */
+ int locked; /* Non-zero means that the display was locked
+ * when the property was read in. */
+ int modified; /* Non-zero means that the property has been
+ * modified, so it needs to be written out
+ * when the NameRegistry is closed. */
unsigned long propLength; /* Length of the property, in bytes. */
- char *property; /* The contents of the property, or NULL
- * if none. See format description above;
- * this is *not* terminated by the first
- * null character. Dynamically allocated. */
+ char *property; /* The contents of the property, or NULL if
+ * none. See format description above; this is
+ * *not* terminated by the first null
+ * character. Dynamically allocated. */
int allocedByX; /* Non-zero means must free property with
* XFree; zero means use ckfree. */
} NameRegistry;
-static int initialized = false; /* A flag to denote if we have initialized yet. */
+static int initialized = false; /* A flag to denote if we have initialized
+ * yet. */
static RegisteredInterp *interpListPtr = NULL;
-/* List of all interpreters
- * registered by this process. */
-
- /*
- * The information below is used for communication between processes
- * during "send" commands. Each process keeps a private window, never
- * even mapped, with one property, "Comm". When a command is sent to
- * an interpreter, the command is appended to the comm property of the
- * communication window associated with the interp's process. Similarly,
- * when a result is returned from a sent command, it is also appended
- * to the comm property.
- *
- * Each command and each result takes the form of ASCII text. For a
- * command, the text consists of a zero character followed by several
- * null-terminated ASCII strings. The first string consists of the
- * single letter "c". Subsequent strings have the form "option value"
- * where the following options are supported:
- *
- * -r commWindow serial
- *
- * This option means that a response should be sent to the window
- * whose X identifier is "commWindow" (in hex), and the response should
- * be identified with the serial number given by "serial" (in decimal).
- * If this option isn't specified then the send is asynchronous and
- * no response is sent.
- *
- * -n name
- * "Name" gives the name of the application for which the command is
- * intended. This option must be present.
- *
- * -s script
- *
- * "Script" is the script to be executed. This option must be present.
- *
- * The options may appear in any order. The -n and -s options must be
- * present, but -r may be omitted for asynchronous RPCs. For compatibility
- * with future releases that may add new features, there may be additional
- * options present; as long as they start with a "-" character, they will
- * be ignored.
- *
- * A result also consists of a zero character followed by several null-
- * terminated ASCII strings. The first string consists of the single
- * letter "r". Subsequent strings have the form "option value" where
- * the following options are supported:
- *
- * -s serial
- *
- * Identifies the command for which this is the result. It is the
- * same as the "serial" field from the -s option in the command. This
- * option must be present.
- *
- * -c code
- *
- * "Code" is the completion code for the script, in decimal. If the
- * code is omitted it defaults to TCL_OK.
- *
- * -r result
- *
- * "Result" is the result string for the script, which may be either
- * a result or an error message. If this field is omitted then it
- * defaults to an empty string.
- *
- * -i errorInfo
- *
- * "ErrorInfo" gives a string with which to initialize the errorInfo
- * variable. This option may be omitted; it is ignored unless the
- * completion code is TCL_ERROR.
- *
- * -e errorCode
- *
- * "ErrorCode" gives a string with with to initialize the errorCode
- * variable. This option may be omitted; it is ignored unless the
- * completion code is TCL_ERROR.
- *
- * Options may appear in any order, and only the -s option must be
- * present. As with commands, there may be additional options besides
- * these; unknown options are ignored.
- */
-
- /*
- * Maximum size property that can be read at one time by
- * this module:
- */
+ /* List of all interpreters registered by this
+ * process. */
+
+/*
+ * The information below is used for communication between processes during
+ * "send" commands. Each process keeps a private window, never even mapped,
+ * with one property, "Comm". When a command is sent to an interpreter, the
+ * command is appended to the comm property of the communication window
+ * associated with the interp's process. Similarly, when a result is returned
+ * from a sent command, it is also appended to the comm property.
+ *
+ * Each command and each result takes the form of ASCII text. For a command,
+ * the text consists of a zero character followed by several null-terminated
+ * ASCII strings. The first string consists of the single letter "c".
+ * Subsequent strings have the form "option value" where the following options
+ * are supported:
+ *
+ * -r commWindow serial
+ *
+ * This option means that a response should be sent to the window whose X
+ * identifier is "commWindow" (in hex), and the response should be
+ * identified with the serial number given by "serial" (in decimal). If
+ * this option isn't specified then the send is asynchronous and no
+ * response is sent.
+ *
+ * -n name
+ *
+ * "Name" gives the name of the application for which the command is
+ * intended. This option must be present.
+ *
+ * -s script
+ *
+ * "Script" is the script to be executed. This option must be present.
+ *
+ * The options may appear in any order. The -n and -s options must be present,
+ * but -r may be omitted for asynchronous RPCs. For compatibility with future
+ * releases that may add new features, there may be additional options
+ * present; as long as they start with a "-" character, they will be ignored.
+ *
+ *
+ * A result also consists of a zero character followed by several null-
+ * terminated ASCII strings. The first string consists of the single letter
+ * "r". Subsequent strings have the form "option value" where the following
+ * options are supported:
+ *
+ * -s serial
+ *
+ * Identifies the command for which this is the result. It is the same as
+ * the "serial" field from the -s option in the command. This option must
+ * be present.
+ *
+ * -c code
+ *
+ * "Code" is the completion code for the script, in decimal. If the code
+ * is omitted it defaults to TCL_OK.
+ *
+ * -r result
+ *
+ * "Result" is the result string for the script, which may be either a
+ * result or an error message. If this field is omitted then it defaults
+ * to an empty string.
+ *
+ * -i errorInfo
+ *
+ * "ErrorInfo" gives a string with which to initialize the errorInfo
+ * variable. This option may be omitted; it is ignored unless the
+ * completion code is TCL_ERROR.
+ *
+ * -e errorCode
+ *
+ * "ErrorCode" gives a string with with to initialize the errorCode
+ * variable. This option may be omitted; it is ignored unless the
+ * completion code is TCL_ERROR.
+ *
+ * Options may appear in any order, and only the -s option must be present. As
+ * with commands, there may be additional options besides these; unknown
+ * options are ignored.
+ */
+
+/*
+ * Maximum size property that can be read at one time by this module:
+ */
#define MAX_PROP_WORDS 100000
@@ -178,7 +174,6 @@ static RegisteredInterp *interpListPtr = NULL;
*/
static int SendInit(Tcl_Interp *interp);
-
/*
*--------------------------------------------------------------
@@ -186,34 +181,33 @@ static int SendInit(Tcl_Interp *interp);
* Tk_SetAppName --
*
* This procedure is called to associate an ASCII name with a Tk
- * application. If the application has already been named, the
- * name replaces the old one.
+ * application. If the application has already been named, the name
+ * replaces the old one.
*
* Results:
- * The return value is the name actually given to the application.
- * This will normally be the same as name, but if name was already
- * in use for an application then a name of the form "name #2" will
- * be chosen, with a high enough number to make the name unique.
+ * The return value is the name actually given to the application. This
+ * will normally be the same as name, but if name was already in use for
+ * an application then a name of the form "name #2" will be chosen, with
+ * a high enough number to make the name unique.
*
* Side effects:
- * Registration info is saved, thereby allowing the "send" command
- * to be used later to invoke commands in the application. In
- * addition, the "send" command is created in the application's
- * interpreter. The registration will be removed automatically
- * if the interpreter is deleted or the "send" command is removed.
+ * Registration info is saved, thereby allowing the "send" command to be
+ * used later to invoke commands in the application. In addition, the
+ * "send" command is created in the application's interpreter. The
+ * registration will be removed automatically if the interpreter is
+ * deleted or the "send" command is removed.
*
*--------------------------------------------------------------
*/
CONST char *
Tk_SetAppName(
- Tk_Window tkwin, /* Token for any window in the application
- * to be named: it is just used to identify
- * the application and the display. */
- CONST char *name) /* The name that will be used to
- * refer to the interpreter in later
- * "send" commands. Must be globally
- * unique. */
+ Tk_Window tkwin, /* Token for any window in the application to
+ * be named: it is just used to identify the
+ * application and the display. */
+ CONST char *name) /* The name that will be used to refer to the
+ * interpreter in later "send" commands. Must
+ * be globally unique. */
{
TkWindow *winPtr = (TkWindow *) tkwin;
Tcl_Interp *interp = winPtr->mainPtr->interp;
@@ -229,9 +223,9 @@ Tk_SetAppName(
}
/*
- * See if the application is already registered; if so, remove its
- * current name from the registry. The deletion of the command
- * will take care of disposing of this entry.
+ * See if the application is already registered; if so, remove its current
+ * name from the registry. The deletion of the command will take care of
+ * disposing of this entry.
*/
for (riPtr = interpListPtr, prevPtr = NULL; riPtr != NULL;
@@ -247,10 +241,9 @@ Tk_SetAppName(
}
/*
- * Pick a name to use for the application. Use "name" if it's not
- * already in use. Otherwise add a suffix such as " #2", trying
- * larger and larger numbers until we eventually find one that is
- * unique.
+ * Pick a name to use for the application. Use "name" if it's not already
+ * in use. Otherwise add a suffix such as " #2", trying larger and larger
+ * numbers until we eventually find one that is unique.
*/
actualName = name;
@@ -301,8 +294,7 @@ Tk_SetAppName(
* TODO: DeleteProc
*/
- Tcl_CreateObjCommand(interp, "send", Tk_SendObjCmd,
- (ClientData) riPtr, NULL);
+ Tcl_CreateObjCommand(interp, "send", Tk_SendObjCmd, riPtr, NULL);
if (Tcl_IsSafe(interp)) {
Tcl_HideCommand(interp, "send", "send");
}
@@ -316,8 +308,8 @@ Tk_SetAppName(
*
* Tk_SendObjCmd --
*
- * This procedure is invoked to process the "send" Tcl command.
- * See the user documentation for details on what it does.
+ * This procedure is invoked to process the "send" Tcl command. See the
+ * user documentation for details on what it does.
*
* Results:
* A standard Tcl result.
@@ -375,11 +367,10 @@ Tk_SendObjCmd(
resultPtr = Tcl_GetObjResult(interp);
/*
- * See if the target interpreter is local. If so, execute
- * the command directly without going through the DDE server.
- * The only tricky thing is passing the result from the target
- * interpreter to the invoking interpreter. Watch out: they
- * could be the same!
+ * See if the target interpreter is local. If so, execute the command
+ * directly without going through the DDE server. The only tricky thing is
+ * passing the result from the target interpreter to the invoking
+ * interpreter. Watch out: they could be the same!
*/
for (riPtr = interpListPtr; (riPtr != NULL)
@@ -387,29 +378,29 @@ Tk_SendObjCmd(
/*
* Empty loop body.
*/
-
}
if (riPtr != NULL) {
/*
- * This command is to a local interp. No need to go through
- * the server.
+ * This command is to a local interp. No need to go through the
+ * server.
*/
Tcl_Interp *localInterp;
- Tcl_Preserve((ClientData) riPtr);
+ Tcl_Preserve(riPtr);
localInterp = riPtr->interp;
- Tcl_Preserve((ClientData) localInterp);
+ Tcl_Preserve(localInterp);
if (firstArg == (objc - 1)) {
/*
- * This might be one of those cases where the new
- * parser is faster.
+ * This might be one of those cases where the new parser is
+ * faster.
*/
- result = Tcl_EvalObjEx(localInterp, objv[firstArg], TCL_EVAL_DIRECT);
+ result = Tcl_EvalObjEx(localInterp, objv[firstArg],
+ TCL_EVAL_DIRECT);
} else {
- listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL);
+ listObjPtr = Tcl_NewListObj(0, NULL);
for (i = firstArg; i < objc; i++) {
Tcl_ListObjAppendList(interp, listObjPtr, objv[i]);
}
@@ -425,9 +416,9 @@ Tk_SendObjCmd(
* An error occurred, so transfer error information from the
* destination interpreter back to our interpreter. Must clear
* interp's result before calling Tcl_AddErrorInfo, since
- * Tcl_AddErrorInfo will store the interp's result in errorInfo
- * before appending riPtr's $errorInfo; we've already got
- * everything we need in riPtr's $errorInfo.
+ * Tcl_AddErrorInfo will store the interp's result in
+ * errorInfo before appending riPtr's $errorInfo; we've
+ * already got everything we need in riPtr's $errorInfo.
*/
Tcl_ResetResult(interp);
@@ -439,12 +430,12 @@ Tk_SendObjCmd(
}
Tcl_SetObjResult(interp, Tcl_GetObjResult(localInterp));
}
- Tcl_Release((ClientData) riPtr);
- Tcl_Release((ClientData) localInterp);
+ Tcl_Release(riPtr);
+ Tcl_Release(localInterp);
} else {
/*
- * TODO: This is a non-local request. Send the script to the server and
- * poll it for a result.
+ * TODO: This is a non-local request. Send the script to the server
+ * and poll it for a result.
*/
}
@@ -456,15 +447,14 @@ Tk_SendObjCmd(
*
* TkGetInterpNames --
*
- * This procedure is invoked to fetch a list of all the
- * interpreter names currently registered for the display
- * of a particular window.
+ * This procedure is invoked to fetch a list of all the interpreter names
+ * currently registered for the display of a particular window.
*
* Results:
- * A standard Tcl return value. Interp->result will be set
- * to hold a list of all the interpreter names defined for
- * tkwin's display. If an error occurs, then TCL_ERROR
- * is returned and interp->result will hold an error message.
+ * A standard Tcl return value. Interp->result will be set to hold a list
+ * of all the interpreter names defined for tkwin's display. If an error
+ * occurs, then TCL_ERROR is returned and interp->result will hold an
+ * error message.
*
* Side effects:
* None.
@@ -475,13 +465,13 @@ Tk_SendObjCmd(
int
TkGetInterpNames(
Tcl_Interp *interp, /* Interpreter for returning a result. */
- Tk_Window tkwin) /* Window whose display is to be used
- * for the lookup. */
+ Tk_Window tkwin) /* Window whose display is to be used for the
+ * lookup. */
{
Tcl_Obj *listObjPtr;
RegisteredInterp *riPtr;
- listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **) NULL);
+ listObjPtr = Tcl_NewListObj(0, NULL);
riPtr = interpListPtr;
while (riPtr != NULL) {
Tcl_ListObjAppendElement(interp, listObjPtr,
@@ -498,9 +488,8 @@ TkGetInterpNames(
*
* SendInit --
*
- * This procedure is called to initialize the
- * communication channels for sending commands and
- * receiving results.
+ * This procedure is called to initialize the communication channels for
+ * sending commands and receiving results.
*
* Results:
* None.
@@ -513,8 +502,8 @@ TkGetInterpNames(
static int
SendInit(
- Tcl_Interp *interp) /* Interpreter to use for error reporting
- * (no errors are ever returned, but the
+ Tcl_Interp *interp) /* Interpreter to use for error reporting (no
+ * errors are ever returned, but the
* interpreter is needed anyway). */
{
return TCL_OK;