diff options
author | Diego Nehab <diego@tecgraf.puc-rio.br> | 2003-05-25 01:54:13 +0000 |
---|---|---|
committer | Diego Nehab <diego@tecgraf.puc-rio.br> | 2003-05-25 01:54:13 +0000 |
commit | 0f6c8d50a99997ac7829864b1c93362b50f1bbf3 (patch) | |
tree | d0cefe3a05484e65b7b7e79d8cae4a1d2e6d19fb /src/timeout.c | |
parent | c1ef3e7103cc652d2004ef1ddc9409b946207f33 (diff) | |
download | luasocket-0f6c8d50a99997ac7829864b1c93362b50f1bbf3.tar.gz luasocket-0f6c8d50a99997ac7829864b1c93362b50f1bbf3.tar.bz2 luasocket-0f6c8d50a99997ac7829864b1c93362b50f1bbf3.zip |
Porting to LUA 5.0 final
Diffstat (limited to 'src/timeout.c')
-rw-r--r-- | src/timeout.c | 116 |
1 files changed, 64 insertions, 52 deletions
diff --git a/src/timeout.c b/src/timeout.c index 5549c89..17878aa 100644 --- a/src/timeout.c +++ b/src/timeout.c | |||
@@ -1,18 +1,19 @@ | |||
1 | /*=========================================================================*\ | 1 | /*=========================================================================*\ |
2 | * Timeout management functions | 2 | * Timeout management functions |
3 | * Global Lua functions: | 3 | * Global Lua functions: |
4 | * _sleep: (debug mode only) | 4 | * _sleep |
5 | * _time: (debug mode only) | 5 | * _time |
6 | * | 6 | * |
7 | * RCS ID: $Id$ | 7 | * RCS ID: $Id$ |
8 | \*=========================================================================*/ | 8 | \*=========================================================================*/ |
9 | #include <stdio.h> | ||
10 | |||
9 | #include <lua.h> | 11 | #include <lua.h> |
10 | #include <lauxlib.h> | 12 | #include <lauxlib.h> |
11 | 13 | ||
12 | #include "lspriv.h" | 14 | #include "luasocket.h" |
13 | #include "lstm.h" | 15 | #include "aux.h" |
14 | 16 | #include "tm.h" | |
15 | #include <stdio.h> | ||
16 | 17 | ||
17 | #ifdef WIN32 | 18 | #ifdef WIN32 |
18 | #include <windows.h> | 19 | #include <windows.h> |
@@ -28,78 +29,69 @@ | |||
28 | static int tm_lua_time(lua_State *L); | 29 | static int tm_lua_time(lua_State *L); |
29 | static int tm_lua_sleep(lua_State *L); | 30 | static int tm_lua_sleep(lua_State *L); |
30 | 31 | ||
32 | static luaL_reg func[] = { | ||
33 | { "time", tm_lua_time }, | ||
34 | { "sleep", tm_lua_sleep }, | ||
35 | { NULL, NULL } | ||
36 | }; | ||
37 | |||
31 | /*=========================================================================*\ | 38 | /*=========================================================================*\ |
32 | * Exported functions. | 39 | * Exported functions. |
33 | \*=========================================================================*/ | 40 | \*=========================================================================*/ |
34 | /*-------------------------------------------------------------------------*\ | 41 | /*-------------------------------------------------------------------------*\ |
35 | * Sets timeout limits | 42 | * Initialize structure |
36 | * Input | ||
37 | * tm: timeout control structure | ||
38 | * mode: block or return timeout | ||
39 | * value: timeout value in miliseconds | ||
40 | \*-------------------------------------------------------------------------*/ | 43 | \*-------------------------------------------------------------------------*/ |
41 | void tm_set(p_tm tm, int tm_block, int tm_return) | 44 | void tm_init(p_tm tm, int block, int total) |
42 | { | 45 | { |
43 | tm->tm_block = tm_block; | 46 | tm->block = block; |
44 | tm->tm_return = tm_return; | 47 | tm->total = total; |
45 | } | 48 | } |
46 | 49 | ||
47 | /*-------------------------------------------------------------------------*\ | 50 | /*-------------------------------------------------------------------------*\ |
48 | * Returns timeout limits | 51 | * Set and get timeout limits |
49 | * Input | ||
50 | * tm: timeout control structure | ||
51 | * mode: block or return timeout | ||
52 | * value: timeout value in miliseconds | ||
53 | \*-------------------------------------------------------------------------*/ | 52 | \*-------------------------------------------------------------------------*/ |
54 | void tm_get(p_tm tm, int *tm_block, int *tm_return) | 53 | void tm_setblock(p_tm tm, int block) |
55 | { | 54 | { tm->block = block; } |
56 | if (tm_block) *tm_block = tm->tm_block; | 55 | void tm_settotal(p_tm tm, int total) |
57 | if (tm_return) *tm_return = tm->tm_return; | 56 | { tm->total = total; } |
58 | } | 57 | int tm_getblock(p_tm tm) |
58 | { return tm->block; } | ||
59 | int tm_gettotal(p_tm tm) | ||
60 | { return tm->total; } | ||
61 | int tm_getstart(p_tm tm) | ||
62 | { return tm->start; } | ||
59 | 63 | ||
60 | /*-------------------------------------------------------------------------*\ | 64 | /*-------------------------------------------------------------------------*\ |
61 | * Determines how much time we have left for the current io operation | 65 | * Determines how much time we have left for the current operation |
62 | * an IO write operation. | ||
63 | * Input | 66 | * Input |
64 | * tm: timeout control structure | 67 | * tm: timeout control structure |
65 | * Returns | 68 | * Returns |
66 | * the number of ms left or -1 if there is no time limit | 69 | * the number of ms left or -1 if there is no time limit |
67 | \*-------------------------------------------------------------------------*/ | 70 | \*-------------------------------------------------------------------------*/ |
68 | int tm_getremaining(p_tm tm) | 71 | int tm_get(p_tm tm) |
69 | { | 72 | { |
70 | /* no timeout */ | 73 | /* no timeout */ |
71 | if (tm->tm_block < 0 && tm->tm_return < 0) | 74 | if (tm->block < 0 && tm->total < 0) |
72 | return -1; | 75 | return -1; |
73 | /* there is no block timeout, we use the return timeout */ | 76 | /* there is no block timeout, we use the return timeout */ |
74 | else if (tm->tm_block < 0) | 77 | else if (tm->block < 0) |
75 | return MAX(tm->tm_return - tm_gettime() + tm->tm_start, 0); | 78 | return MAX(tm->total - tm_gettime() + tm->start, 0); |
76 | /* there is no return timeout, we use the block timeout */ | 79 | /* there is no return timeout, we use the block timeout */ |
77 | else if (tm->tm_return < 0) | 80 | else if (tm->total < 0) |
78 | return tm->tm_block; | 81 | return tm->block; |
79 | /* both timeouts are specified */ | 82 | /* both timeouts are specified */ |
80 | else return MIN(tm->tm_block, | 83 | else return MIN(tm->block, |
81 | MAX(tm->tm_return - tm_gettime() + tm->tm_start, 0)); | 84 | MAX(tm->total - tm_gettime() + tm->start, 0)); |
82 | } | 85 | } |
83 | 86 | ||
84 | /*-------------------------------------------------------------------------*\ | 87 | /*-------------------------------------------------------------------------*\ |
85 | * Marks the operation start time in sock structure | 88 | * Marks the operation start time in structure |
86 | * Input | 89 | * Input |
87 | * tm: timeout control structure | 90 | * tm: timeout control structure |
88 | \*-------------------------------------------------------------------------*/ | 91 | \*-------------------------------------------------------------------------*/ |
89 | void tm_markstart(p_tm tm) | 92 | void tm_markstart(p_tm tm) |
90 | { | 93 | { |
91 | tm->tm_start = tm_gettime(); | 94 | tm->start = tm_gettime(); |
92 | tm->tm_end = tm->tm_start; | ||
93 | } | ||
94 | |||
95 | /*-------------------------------------------------------------------------*\ | ||
96 | * Returns the length of the operation in ms | ||
97 | * Input | ||
98 | * tm: timeout control structure | ||
99 | \*-------------------------------------------------------------------------*/ | ||
100 | int tm_getelapsed(p_tm tm) | ||
101 | { | ||
102 | return tm->tm_end - tm->tm_start; | ||
103 | } | 95 | } |
104 | 96 | ||
105 | /*-------------------------------------------------------------------------*\ | 97 | /*-------------------------------------------------------------------------*\ |
@@ -125,11 +117,31 @@ int tm_gettime(void) | |||
125 | \*-------------------------------------------------------------------------*/ | 117 | \*-------------------------------------------------------------------------*/ |
126 | void tm_open(lua_State *L) | 118 | void tm_open(lua_State *L) |
127 | { | 119 | { |
128 | (void) L; | 120 | luaL_openlib(L, LUASOCKET_LIBNAME, func, 0); |
129 | lua_pushcfunction(L, tm_lua_time); | 121 | } |
130 | priv_newglobal(L, "_time"); | 122 | |
131 | lua_pushcfunction(L, tm_lua_sleep); | 123 | /*-------------------------------------------------------------------------*\ |
132 | priv_newglobal(L, "_sleep"); | 124 | * Sets timeout values for IO operations |
125 | * Lua Input: base, time [, mode] | ||
126 | * time: time out value in seconds | ||
127 | * mode: "b" for block timeout, "t" for total timeout. (default: b) | ||
128 | \*-------------------------------------------------------------------------*/ | ||
129 | int tm_meth_timeout(lua_State *L, p_tm tm) | ||
130 | { | ||
131 | int ms = lua_isnil(L, 2) ? -1 : (int) (luaL_checknumber(L, 2)*1000.0); | ||
132 | const char *mode = luaL_optstring(L, 3, "b"); | ||
133 | switch (*mode) { | ||
134 | case 'b': | ||
135 | tm_setblock(tm, ms); | ||
136 | break; | ||
137 | case 'r': case 't': | ||
138 | tm_settotal(tm, ms); | ||
139 | break; | ||
140 | default: | ||
141 | luaL_argcheck(L, 0, 3, "invalid timeout mode"); | ||
142 | break; | ||
143 | } | ||
144 | return 0; | ||
133 | } | 145 | } |
134 | 146 | ||
135 | /*=========================================================================*\ | 147 | /*=========================================================================*\ |