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[PATCH v4 04/10] terminal: make the code of disable_echo() reusable

From
Johannes Schindelin via GitGitGadget <gitgitgadget@gmail.com>
Date
Jan 14, 2020, 18:43 UTC
Message-ID
<09a8946303720f8abd168d0590d421c1dbbbd71a.1579027433.git.gitgitgadget@gmail.com>
In-Reply-To
<pull.175.v4.git.1579027433.gitgitgadget@gmail.com>
From: Johannes Schindelin <johannes.schindelin@gmx.de>

We are about to introduce the function `enable_non_canonical()`, which shares almost the complete code with `disable_echo()`.

Let's prepare for that, by refactoring out that shared code.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 compat/terminal.c | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/compat/terminal.c b/compat/terminal.c
index fa13ee672d..1fb40b3a0a 100644
--- a/compat/terminal.c
+++ b/compat/terminal.c
@@ -32,7 +32,7 @@ static void restore_term(void)
 	term_fd = -1;
 }
 
-static int disable_echo(void)
+static int disable_bits(tcflag_t bits)
 {
 	struct termios t;
 
@@ -43,7 +43,7 @@ static int disable_echo(void)
 	old_term = t;
 	sigchain_push_common(restore_term_on_signal);
 
-	t.c_lflag &= ~ECHO;
+	t.c_lflag &= ~bits;
 	if (!tcsetattr(term_fd, TCSAFLUSH, &t))
 		return 0;
 
@@ -53,6 +53,11 @@ static int disable_echo(void)
 	return -1;
 }
 
+static int disable_echo(void)
+{
+	return disable_bits(ECHO);
+}
+
 #elif defined(GIT_WINDOWS_NATIVE)
 
 #define INPUT_PATH "CONIN$"
@@ -72,7 +77,7 @@ static void restore_term(void)
 	hconin = INVALID_HANDLE_VALUE;
 }
 
-static int disable_echo(void)
+static int disable_bits(DWORD bits)
 {
 	hconin = CreateFile("CONIN$", GENERIC_READ | GENERIC_WRITE,
 	    FILE_SHARE_READ, NULL, OPEN_EXISTING,
@@ -82,7 +87,7 @@ static int disable_echo(void)
 
 	GetConsoleMode(hconin, &cmode);
 	sigchain_push_common(restore_term_on_signal);
-	if (!SetConsoleMode(hconin, cmode & (~ENABLE_ECHO_INPUT))) {
+	if (!SetConsoleMode(hconin, cmode & ~bits)) {
 		CloseHandle(hconin);
 		hconin = INVALID_HANDLE_VALUE;
 		return -1;
@@ -91,6 +96,12 @@ static int disable_echo(void)
 	return 0;
 }
 
+static int disable_echo(void)
+{
+	return disable_bits(ENABLE_ECHO_INPUT);
+}
+
+
 #endif
 
 #ifndef FORCE_TEXT

-- 
gitgitgadget
Previous: Johannes Schindelin via GitGitGadgetNext: Johannes Schindelin via GitGitGadget
Message 62 of 63 in “built-in add -p: add support for the same config settings as the Perl version”
  1. 0/9 built-in add -p: add support for the same config settings as the Perl versionJohannes Schindelin via GitGitGadget, Dec 21, 2019
  2. 1/9 built-in add -p: support interactive.diffFilterJohannes Schindelin via GitGitGadget, Dec 21, 2019
  3. 2/9 built-in add -p: handle diff.algorithmJohannes Schindelin via GitGitGadget, Dec 21, 2019
  4. 6/9 built-in add -p: respect the `interactive.singlekey` config settingJohannes Schindelin via GitGitGadget, Dec 21, 2019
  5. 8/9 built-in add -p: handle Escape sequences more efficientlyJohannes Schindelin via GitGitGadget, Dec 21, 2019
  6. 4/9 terminal: accommodate Git for Windows' default terminalJohannes Schindelin via GitGitGadget, Dec 21, 2019
  7. 3/9 terminal: make the code of disable_echo() reusableJohannes Schindelin via GitGitGadget, Dec 21, 2019
  8. 7/9 built-in add -p: handle Escape sequences in interactive.singlekey modeJohannes Schindelin via GitGitGadget, Dec 21, 2019
  9. 5/9 terminal: add a new function to read a single keystrokeJohannes Schindelin via GitGitGadget, Dec 21, 2019
  10. 9/9 ci: include the built-in `git add -i` in the `linux-gcc` jobJohannes Schindelin via GitGitGadget, Dec 21, 2019
  11. SZEDER GáborDec 21, 2019
  12. Johannes SchindelinDec 25, 2019
  13. Junio C HamanoDec 22, 2019
  14. Johannes SchindelinDec 25, 2019
  15. Junio C HamanoDec 24, 2019
  16. Junio C HamanoDec 24, 2019
  17. Simon RuderichDec 25, 2019
  18. Johannes SchindelinDec 25, 2019
  19. Johannes SchindelinDec 25, 2019
  20. 0/9 built-in add -p: add support for the same config settings as the Perl versionJohannes Schindelin via GitGitGadget, Dec 25, 2019
  21. 1/9 built-in add -p: support interactive.diffFilterJohannes Schindelin via GitGitGadget, Dec 25, 2019
  22. SZEDER GáborJan 7, 2020
  23. Johannes SchindelinJan 13, 2020
  24. 2/9 built-in add -p: handle diff.algorithmJohannes Schindelin via GitGitGadget, Dec 25, 2019
  25. 3/9 terminal: make the code of disable_echo() reusableJohannes Schindelin via GitGitGadget, Dec 25, 2019
  26. 4/9 terminal: accommodate Git for Windows' default terminalJohannes Schindelin via GitGitGadget, Dec 25, 2019
  27. 6/9 built-in add -p: respect the `interactive.singlekey` config settingJohannes Schindelin via GitGitGadget, Dec 25, 2019
  28. 8/9 built-in add -p: handle Escape sequences more efficientlyJohannes Schindelin via GitGitGadget, Dec 25, 2019
  29. 9/9 ci: include the built-in `git add -i` in the `linux-gcc` jobJohannes Schindelin via GitGitGadget, Dec 25, 2019
  30. Derrick StoleeDec 26, 2019
  31. Johannes SchindelinJan 1, 2020
  32. 7/9 built-in add -p: handle Escape sequences in interactive.singlekey modeJohannes Schindelin via GitGitGadget, Dec 25, 2019
  33. 5/9 terminal: add a new function to read a single keystrokeJohannes Schindelin via GitGitGadget, Dec 25, 2019
  34. Junio C HamanoDec 26, 2019
  35. 00/10 built-in add -p: add support for the same config settings as the Perl versionJohannes Schindelin via GitGitGadget, Jan 13, 2020
  36. 01/10 built-in add -i/-p: treat SIGPIPE as EOFJohannes Schindelin via GitGitGadget, Jan 13, 2020
  37. SZEDER GáborJan 13, 2020
  38. Jeff KingJan 13, 2020
  39. Junio C HamanoJan 15, 2020
  40. Jeff KingJan 15, 2020
  41. Johannes SchindelinJan 14, 2020
  42. SZEDER GáborJan 17, 2020
  43. Jeff KingJan 17, 2020
  44. 02/10 built-in add -p: support interactive.diffFilterJohannes Schindelin via GitGitGadget, Jan 13, 2020
  45. 03/10 built-in add -p: handle diff.algorithmJohannes Schindelin via GitGitGadget, Jan 13, 2020
  46. 05/10 terminal: accommodate Git for Windows' default terminalJohannes Schindelin via GitGitGadget, Jan 13, 2020
  47. 04/10 terminal: make the code of disable_echo() reusableJohannes Schindelin via GitGitGadget, Jan 13, 2020
  48. 06/10 terminal: add a new function to read a single keystrokeJohannes Schindelin via GitGitGadget, Jan 13, 2020
  49. 07/10 built-in add -p: respect the `interactive.singlekey` config settingJohannes Schindelin via GitGitGadget, Jan 13, 2020
  50. 10/10 ci: include the built-in `git add -i` in the `linux-gcc` jobJohannes Schindelin via GitGitGadget, Jan 13, 2020
  51. 09/10 built-in add -p: handle Escape sequences more efficientlyJohannes Schindelin via GitGitGadget, Jan 13, 2020
  52. 08/10 built-in add -p: handle Escape sequences in interactive.singlekey modeJohannes Schindelin via GitGitGadget, Jan 13, 2020
  53. 00/10 built-in add -p: add support for the same config settings as the Perl versionJohannes Schindelin via GitGitGadget, Jan 14, 2020
  54. 01/10 t3701: adjust difffilter testJohannes Schindelin via GitGitGadget, Jan 14, 2020
  55. 02/10 built-in add -p: support interactive.diffFilterJohannes Schindelin via GitGitGadget, Jan 14, 2020
  56. 05/10 terminal: accommodate Git for Windows' default terminalJohannes Schindelin via GitGitGadget, Jan 14, 2020
  57. 08/10 built-in add -p: handle Escape sequences in interactive.singlekey modeJohannes Schindelin via GitGitGadget, Jan 14, 2020
  58. 10/10 ci: include the built-in `git add -i` in the `linux-gcc` jobJohannes Schindelin via GitGitGadget, Jan 14, 2020
  59. 07/10 built-in add -p: respect the `interactive.singlekey` config settingJohannes Schindelin via GitGitGadget, Jan 14, 2020
  60. 03/10 built-in add -p: handle diff.algorithmJohannes Schindelin via GitGitGadget, Jan 14, 2020
  61. 06/10 terminal: add a new function to read a single keystrokeJohannes Schindelin via GitGitGadget, Jan 14, 2020
  62. 04/10 terminal: make the code of disable_echo() reusableJohannes Schindelin via GitGitGadget, Jan 14, 2020
  63. 09/10 built-in add -p: handle Escape sequences more efficientlyJohannes Schindelin via GitGitGadget, Jan 14, 2020

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