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1 /** | 1 /** |
2 * \file process.h | 2 * \file process.h |
3 */ | 3 */ |
4 | 4 |
5 #ifndef PROCESS_H | 5 #ifndef PROCESS_H |
6 #define PROCESS_H | 6 #define PROCESS_H |
7 | 7 |
8 #include "installer-lib.h" | 8 #include "installer-lib.h" |
9 #include "handle.h" | 9 #include "handle.h" |
10 | 10 |
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95 * Filter by process name. Comparison is case-insensitive. Windows Store app pro
cesses excluded | 95 * Filter by process name. Comparison is case-insensitive. Windows Store app pro
cesses excluded |
96 */ | 96 */ |
97 class process_by_any_exe_not_immersive | 97 class process_by_any_exe_not_immersive |
98 : public std::unary_function<PROCESSENTRY32W, bool> | 98 : public std::unary_function<PROCESSENTRY32W, bool> |
99 { | 99 { |
100 /** | 100 /** |
101 * Set of file names from which to match candidate process names. | 101 * Set of file names from which to match candidate process names. |
102 * | 102 * |
103 * This is a reference to, not a copy of, the set. | 103 * This is a reference to, not a copy of, the set. |
104 * The lifetime of this object must be subordinate to that of its referent. | 104 * The lifetime of this object must be subordinate to that of its referent. |
105 * The set used to instantiate this class is a member of Process_Closer, | 105 * The set used to instantiate this class is a member of ProcessCloser, |
106 * and so also is this class. | 106 * and so also is this class. |
107 * Hence the lifetimes are coterminous, and the reference is not problematic. | 107 * Hence the lifetimes are coterminous, and the reference is not problematic. |
108 */ | 108 */ |
109 const file_name_set & processNames; | 109 const file_name_set & processNames; |
110 public: | 110 public: |
111 bool operator()( const PROCESSENTRY32W & ); | 111 bool operator()( const PROCESSENTRY32W & ); |
112 process_by_any_exe_not_immersive(const file_name_set & names) : processNames(
names ) {} | 112 process_by_any_exe_not_immersive(const file_name_set & names) : processNames(
names ) {} |
113 } ; | 113 } ; |
114 | 114 |
115 | 115 |
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366 */ | 366 */ |
367 const result_type * next() | 367 const result_type * next() |
368 { | 368 { |
369 return Traits::next(handle, &buffer) ? &buffer : 0; | 369 return Traits::next(handle, &buffer) ? &buffer : 0; |
370 } | 370 } |
371 } ; | 371 } ; |
372 | 372 |
373 /** | 373 /** |
374 * A snapshot of all processes running on the system. | 374 * A snapshot of all processes running on the system. |
375 */ | 375 */ |
376 struct Process_Snapshot | 376 struct ProcessSnapshot |
377 : public Snapshot< Process_Snapshot_Traits > | 377 : public Snapshot< Process_Snapshot_Traits > |
378 { | 378 { |
379 Process_Snapshot() | 379 ProcessSnapshot() |
380 : Snapshot( 0 ) | 380 : Snapshot( 0 ) |
381 {} | 381 {} |
382 } ; | 382 } ; |
383 | 383 |
384 /** | 384 /** |
385 * A snapshot of all modules loaded for a given process. | 385 * A snapshot of all modules loaded for a given process. |
386 */ | 386 */ |
387 struct Module_Snapshot | 387 struct Module_Snapshot |
388 : public Snapshot< Module_Snapshot_Traits > | 388 : public Snapshot< Module_Snapshot_Traits > |
389 { | 389 { |
390 Module_Snapshot( DWORD process_id ) | 390 Module_Snapshot( DWORD process_id ) |
391 : Snapshot( process_id ) | 391 : Snapshot( process_id ) |
392 {} | 392 {} |
393 } ; | 393 } ; |
394 | 394 |
395 //------------------------------------------------------- | 395 //------------------------------------------------------- |
396 // initialize_process_list | 396 // initialize_process_list |
397 //------------------------------------------------------- | 397 //------------------------------------------------------- |
398 /** | 398 /** |
399 * \tparam T The type into which a PROCESSENTRY32W struture is extracted. | 399 * \tparam T The type into which a PROCESSENTRY32W struture is extracted. |
400 * \tparam Admittance Function type for argument 'admit' | 400 * \tparam Admittance Function type for argument 'admit' |
401 * \tparam Extractor Function type for argument 'extract' | 401 * \tparam Extractor Function type for argument 'extract' |
402 * \param admit A unary predicate function class that determines what's included | 402 * \param admit A unary predicate function class that determines what's included |
403 * A process appears in the list only if the predicate returns true. | 403 * A process appears in the list only if the predicate returns true. |
404 * The use of this predicate is analogous to that in std::copy_if. | 404 * The use of this predicate is analogous to that in std::copy_if. |
405 * \param convert A conversion function that takes a PROCESSENTRY32W as input ar
gument and returns an element of type T. | 405 * \param convert A conversion function that takes a PROCESSENTRY32W as input ar
gument and returns an element of type T. |
406 */ | 406 */ |
407 template<class T, class Admittance, class Extractor> | 407 template<class T, class Admittance, class Extractor> |
408 void initialize_process_list(std::vector<T>& v, Process_Snapshot &snap, Admittan
ce admit = Admittance(), Extractor extract = Extractor()) | 408 void initialize_process_list(std::vector<T>& v, ProcessSnapshot &snap, Admittanc
e admit = Admittance(), Extractor extract = Extractor()) |
409 { | 409 { |
410 const PROCESSENTRY32W* p = snap.first(); | 410 const PROCESSENTRY32W* p = snap.first(); |
411 while (p != 0) | 411 while (p != 0) |
412 { | 412 { |
413 if (admit(*p )) | 413 if (admit(*p )) |
414 { | 414 { |
415 /* | 415 /* |
416 * We don't have C++11 emplace_back, which can construct the element in p
lace. | 416 * We don't have C++11 emplace_back, which can construct the element in p
lace. |
417 * Instead, we copy the return value of the converter. | 417 * Instead, we copy the return value of the converter. |
418 */ | 418 */ |
419 v.push_back(extract(*p)); | 419 v.push_back(extract(*p)); |
420 } | 420 } |
421 p = snap.next(); | 421 p = snap.next(); |
422 } | 422 } |
423 }; | 423 }; |
424 | 424 |
425 //------------------------------------------------------- | 425 //------------------------------------------------------- |
426 // initialize_process_set | 426 // initialize_process_set |
427 //------------------------------------------------------- | 427 //------------------------------------------------------- |
428 /** | 428 /** |
429 * \tparam T The type into which a PROCESSENTRY32W struture is extracted. | 429 * \tparam T The type into which a PROCESSENTRY32W struture is extracted. |
430 * \tparam Admittance Function type for argument 'admit' | 430 * \tparam Admittance Function type for argument 'admit' |
431 * \tparam Extractor Function type for argument 'extract' | 431 * \tparam Extractor Function type for argument 'extract' |
432 * \param admit A unary predicate function class that determines what's included | 432 * \param admit A unary predicate function class that determines what's included |
433 * A process appears in the list only if the predicate returns true. | 433 * A process appears in the list only if the predicate returns true. |
434 * The use of this predicate is analogous to that in std::copy_if. | 434 * The use of this predicate is analogous to that in std::copy_if. |
435 * \param convert A conversion function that takes a PROCESSENTRY32W as input ar
gument and returns an element of type T. | 435 * \param convert A conversion function that takes a PROCESSENTRY32W as input ar
gument and returns an element of type T. |
436 */ | 436 */ |
437 template<class T, class Admittance, class Extractor> | 437 template<class T, class Admittance, class Extractor> |
438 void initialize_process_set(std::set< T > & set, Process_Snapshot &snap, Admitta
nce admit = Admittance(), Extractor extract = Extractor()) | 438 void initialize_process_set(std::set< T > & set, ProcessSnapshot &snap, Admittan
ce admit = Admittance(), Extractor extract = Extractor()) |
439 { | 439 { |
440 const PROCESSENTRY32W* p = snap.first(); | 440 const PROCESSENTRY32W* p = snap.first(); |
441 while (p != 0) | 441 while (p != 0) |
442 { | 442 { |
443 if (admit(*p)) | 443 if (admit(*p)) |
444 { | 444 { |
445 set.insert(extract(*p)); | 445 set.insert(extract(*p)); |
446 } | 446 } |
447 p = snap.next(); | 447 p = snap.next(); |
448 } | 448 } |
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581 { | 581 { |
582 // Assert EnumWindows failed | 582 // Assert EnumWindows failed |
583 data.status = error ; | 583 data.status = error ; |
584 r = false ; | 584 r = false ; |
585 } | 585 } |
586 } | 586 } |
587 return r ; | 587 return r ; |
588 } | 588 } |
589 | 589 |
590 //------------------------------------------------------- | 590 //------------------------------------------------------- |
591 // Process_Closer | 591 // ProcessCloser |
592 //------------------------------------------------------- | 592 //------------------------------------------------------- |
593 class Process_Closer | 593 class ProcessCloser |
594 { | 594 { |
595 /** | 595 /** |
596 * Set of process identifiers matching one of the executable names. | 596 * Set of process identifiers matching one of the executable names. |
597 */ | 597 */ |
598 std::set< DWORD > pid_set ; | 598 std::set< DWORD > pid_set ; |
599 | 599 |
600 /** | 600 /** |
601 * Set of executable names by which to filter. | 601 * Set of executable names by which to filter. |
602 * | 602 * |
603 * The argument of the filter constructor is a set by reference. | 603 * The argument of the filter constructor is a set by reference. |
604 * Since it does not make a copy for itself, we define it as a class member to
provide its allocation. | 604 * Since it does not make a copy for itself, we define it as a class member to
provide its allocation. |
605 */ | 605 */ |
606 file_name_set process_names ; | 606 file_name_set process_names ; |
607 | 607 |
608 process_by_any_exe_not_immersive filter ; | 608 process_by_any_exe_not_immersive filter ; |
609 | 609 |
610 /** | 610 /** |
611 * Copy function object copies just the process ID. | 611 * Copy function object copies just the process ID. |
612 */ | 612 */ |
613 copy_PID copy ; | 613 copy_PID copy ; |
614 | 614 |
615 /** | 615 /** |
616 * Snapshot of running processes. | 616 * Snapshot of running processes. |
617 */ | 617 */ |
618 Process_Snapshot & snapshot ; | 618 ProcessSnapshot & snapshot ; |
619 | 619 |
620 void update() | 620 void update() |
621 { | 621 { |
622 initialize_process_set( pid_set, snapshot, filter, copy ) ; | 622 initialize_process_set( pid_set, snapshot, filter, copy ) ; |
623 } ; | 623 } ; |
624 | 624 |
625 template< class F > | 625 template< class F > |
626 class only_our_processes | 626 class only_our_processes |
627 { | 627 { |
628 Process_Closer & self ; | 628 ProcessCloser & self ; |
629 | 629 |
630 F f ; | 630 F f ; |
631 | 631 |
632 public: | 632 public: |
633 only_our_processes( Process_Closer & self, F f ) | 633 only_our_processes( ProcessCloser & self, F f ) |
634 : f( f ), self( self ) | 634 : f( f ), self( self ) |
635 {} | 635 {} |
636 | 636 |
637 bool operator()( HWND window ) | 637 bool operator()( HWND window ) |
638 { | 638 { |
639 bool b ; | 639 bool b ; |
640 try | 640 try |
641 { | 641 { |
642 b = self.contains( creator_process( window ) ) ; | 642 b = self.contains( creator_process( window ) ) ; |
643 } | 643 } |
644 catch ( ... ) | 644 catch ( ... ) |
645 { | 645 { |
646 // ignore window handles that are no longer valid | 646 // ignore window handles that are no longer valid |
647 return true ; | 647 return true ; |
648 } | 648 } |
649 if ( ! b ) | 649 if ( ! b ) |
650 { | 650 { |
651 // Assert the process that created the window is not in our pid_set | 651 // Assert the process that created the window is not in our pid_set |
652 return true ; | 652 return true ; |
653 } | 653 } |
654 return f( window ) ; | 654 return f( window ) ; |
655 } | 655 } |
656 } ; | 656 } ; |
657 | 657 |
658 public: | 658 public: |
659 template <size_t n_file_names> | 659 template <size_t n_file_names> |
660 Process_Closer(Process_Snapshot & snapshot, const wchar_t * (&file_name_list)[
n_file_names]) | 660 ProcessCloser(ProcessSnapshot & snapshot, const wchar_t * (&file_name_list)[n_
file_names]) |
661 : snapshot(snapshot), process_names(file_name_list), filter(process_names) | 661 : snapshot(snapshot), process_names(file_name_list), filter(process_names) |
662 { | 662 { |
663 update() ; | 663 update() ; |
664 } | 664 } |
665 | 665 |
666 /** | 666 /** |
667 * Refresh our state to match the snapshot state. | 667 * Refresh our state to match the snapshot state. |
668 */ | 668 */ |
669 void refresh() | 669 void refresh() |
670 { | 670 { |
671 pid_set.clear() ; | 671 pid_set.clear() ; |
672 update() ; | 672 update() ; |
673 } | 673 } |
674 | 674 |
675 bool is_running() { return ! pid_set.empty() ; } ; | 675 bool isRunning() { return ! pid_set.empty() ; } ; |
676 | 676 |
677 bool contains( DWORD pid ) const { return pid_set.find( pid ) != pid_set.end()
; } ; | 677 bool contains( DWORD pid ) const { return pid_set.find( pid ) != pid_set.end()
; } ; |
678 | 678 |
679 template< class F > | 679 template< class F > |
680 bool iterate_our_windows( F f ) | 680 bool iterate_our_windows( F f ) |
681 { | 681 { |
682 only_our_processes< F > g( * this, f ) ; | 682 only_our_processes< F > g( * this, f ) ; |
683 return enumerate_windows( g ) ; | 683 return enumerate_windows( g ) ; |
684 } | 684 } |
685 | 685 |
686 /* | 686 /* |
687 * Shut down every process in the pid_set. | 687 * Shut down every process in the pid_set. |
688 */ | 688 */ |
689 bool shut_down() ; | 689 bool shutDown() ; |
690 | 690 |
691 } ; | 691 } ; |
692 | 692 |
693 #endif | 693 #endif |
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