c9093a06 |
1 | /*++\r |
2 | \r |
3 | Copyright (c) 2004 - 2006, Intel Corporation \r |
4 | All rights reserved. This program and the accompanying materials \r |
5 | are licensed and made available under the terms and conditions of the BSD License \r |
6 | which accompanies this distribution. The full text of the license may be found at \r |
7 | http://opensource.org/licenses/bsd-license.php \r |
8 | \r |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r |
11 | \r |
12 | Module Name:\r |
13 | \r |
14 | UnixThunk.c\r |
15 | \r |
16 | Abstract:\r |
17 | \r |
18 | Since the SEC is the only program in our emulation we \r |
19 | must use a Tiano mechanism to export APIs to other modules.\r |
20 | This is the role of the EFI_UNIX_THUNK_PROTOCOL.\r |
21 | \r |
22 | The mUnixThunkTable exists so that a change to EFI_UNIX_THUNK_PROTOCOL\r |
23 | will cause an error in initializing the array if all the member functions\r |
24 | are not added. It looks like adding a element to end and not initializing\r |
25 | it may cause the table to be initaliized with the members at the end being\r |
26 | set to zero. This is bad as jumping to zero will crash.\r |
27 | \r |
28 | \r |
29 | gUnix is a a public exported global that contains the initialized\r |
30 | data.\r |
31 | \r |
32 | --*/\r |
33 | \r |
34 | #include "SecMain.h"\r |
35 | #include "Library/UnixLib.h" |
36 | #include <sys/time.h> |
37 | #include <time.h> |
38 | #include <signal.h> |
39 | #include <string.h> |
40 | #include <stdlib.h> |
41 | |
42 | static int settimer_initialized; |
43 | static struct timeval settimer_timeval; |
44 | static void (*settimer_callback)(UINT64 delta); |
45 | |
46 | static void |
47 | settimer_handler (int sig) |
48 | { |
49 | struct timeval timeval; |
50 | UINT64 delta; |
51 | |
52 | gettimeofday (&timeval, NULL); |
53 | delta = ((UINT64)timeval.tv_sec * 1000) + (timeval.tv_usec / 1000) |
54 | - ((UINT64)settimer_timeval.tv_sec * 1000) |
55 | - (settimer_timeval.tv_usec / 1000); |
56 | settimer_timeval = timeval; |
57 | if (settimer_callback) |
58 | (*settimer_callback)(delta); |
59 | } |
60 | |
61 | static |
62 | VOID |
63 | SetTimer (UINT64 PeriodMs, VOID (*CallBack)(UINT64 DeltaMs)) |
64 | { |
65 | struct itimerval timerval; |
66 | |
67 | if (!settimer_initialized) { |
68 | struct sigaction act; |
69 | |
70 | settimer_initialized = 1; |
71 | act.sa_handler = settimer_handler; |
72 | act.sa_flags = 0; |
73 | sigemptyset (&act.sa_mask); |
74 | if (sigaction (SIGALRM, &act, NULL) != 0) { |
75 | printf ("SetTimer: sigaction error %s\n", strerror (errno)); |
76 | } |
77 | if (gettimeofday (&settimer_timeval, NULL) != 0) { |
78 | printf ("SetTimer: gettimeofday error %s\n", strerror (errno)); |
79 | } |
80 | } |
81 | timerval.it_value.tv_sec = PeriodMs / 1000; |
82 | timerval.it_value.tv_usec = (PeriodMs % 1000) * 1000; |
83 | timerval.it_value.tv_sec = PeriodMs / 1000; |
84 | timerval.it_interval = timerval.it_value; |
85 | |
86 | if (setitimer (ITIMER_REAL, &timerval, NULL) != 0) { |
87 | printf ("SetTimer: setitimer error %s\n", strerror (errno)); |
88 | } |
89 | settimer_callback = CallBack; |
90 | } |
91 | |
92 | void |
93 | GetLocalTime (EFI_TIME *Time) |
94 | { |
95 | struct tm *tm; |
96 | time_t t; |
97 | |
98 | t = time (NULL); |
99 | tm = localtime (&t); |
100 | |
101 | Time->Year = 1900 + tm->tm_year; |
102 | Time->Month = tm->tm_mon; |
103 | Time->Day = tm->tm_mday; |
104 | Time->Hour = tm->tm_hour; |
105 | Time->Minute = tm->tm_min; |
106 | Time->Second = tm->tm_sec; |
107 | Time->Nanosecond = 0; |
108 | Time->TimeZone = timezone; |
109 | Time->Daylight = (daylight ? EFI_TIME_ADJUST_DAYLIGHT : 0) |
110 | | (tm->tm_isdst > 0 ? EFI_TIME_IN_DAYLIGHT : 0); |
111 | } |
112 | |
113 | void |
114 | msSleep (unsigned long Milliseconds) |
115 | { |
116 | usleep (Milliseconds * 1000); |
117 | } |
118 | |
119 | static void |
120 | TzSet (void) |
121 | { |
122 | static int done = 0; |
123 | if (!done) { |
124 | tzset (); |
125 | done = 1; |
126 | } |
127 | } |
128 | |
129 | long |
130 | GetTimeZone(void) |
131 | { |
132 | TzSet (); |
133 | return timezone; |
134 | } |
135 | |
136 | int |
137 | GetDayLight(void) |
138 | { |
139 | TzSet (); |
140 | return daylight; |
141 | } |
142 | |
143 | int |
144 | GetErrno(void) |
145 | { |
146 | return errno; |
147 | } |
148 | |
149 | extern EFI_STATUS |
8ef571df |
150 | UgaCreate(struct _EFI_UNIX_UGA_IO_PROTOCOL **UgaIo, CONST CHAR16 *Title); |
c9093a06 |
151 | |
152 | EFI_UNIX_THUNK_PROTOCOL mUnixThunkTable = {\r |
153 | EFI_UNIX_THUNK_PROTOCOL_SIGNATURE,\r |
154 | msSleep, /* Sleep */ |
155 | exit, /* Exit */ |
156 | SetTimer, |
157 | GetLocalTime, |
158 | gmtime, |
159 | GetTimeZone, |
160 | GetDayLight, |
161 | (UnixPoll)poll, |
162 | (UnixRead)read, |
163 | (UnixWrite)write, |
164 | getenv, |
165 | (UnixOpen)open, |
166 | lseek, |
167 | ftruncate, |
168 | close, |
169 | mkdir, |
170 | rmdir, |
171 | unlink, |
172 | GetErrno, |
173 | opendir, |
174 | rewinddir, |
175 | readdir, |
176 | closedir, |
177 | stat, |
178 | statfs, |
179 | rename, |
180 | mktime, |
181 | fsync, |
182 | chmod, |
183 | utime, |
184 | |
185 | UgaCreate, |
186 | };\r |
187 | \r |
188 | \r |
189 | EFI_UNIX_THUNK_PROTOCOL *gUnix = &mUnixThunkTable;\r |