FilesExpand file tree

main

/

env.c

Copy path

Blame

More file actions

Blame

More file actions

Latest commit

 

History

History

History

149 lines (133 loc) · 2.23 KB

main

/

env.c

Copy path

Top

File metadata and controls

• Code
• Blame

149 lines (133 loc) · 2.23 KB

Raw

Copy raw file

Download raw file

Open symbols panel

Edit and raw actions

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

#include "mk.h"

enum {

ENVQUANTA=10

};

Envy *envy;

static int nextv;

static char *myenv[] =

{

"target",

"stem",

"prereq",

"pid",

"nproc",

"newprereq",

"alltarget",

"newmember",

"stem0", /* must be in order from here */

"stem1",

"stem2",

"stem3",

"stem4",

"stem5",

"stem6",

"stem7",

"stem8",

"stem9",

0

};

void

initenv(void)

{

char **p;

for(p = myenv; *p; p++)

symlook(*p, S_INTERNAL, (void *)"");

readenv(); /* o.s. dependent */

}

static void

envinsert(char *name, Word *value)

{

static int envsize;

if (nextv >= envsize) {

envsize += ENVQUANTA;

envy = (Envy *) Realloc((char *) envy, envsize*sizeof(Envy));

}

envy[nextv].name = name;

envy[nextv++].values = value;

}

static void

envupd(char *name, Word *value)

{

Envy *e;

for(e = envy; e->name; e++)

if(strcmp(name, e->name) == 0){

delword(e->values);

e->values = value;

return;

}

e->name = name;

e->values = value;

envinsert(0,0);

}

static void

ecopy(Symtab *s)

{

char **p;

if(symlook(s->name, S_NOEXPORT, 0))

return;

for(p = myenv; *p; p++)

if(strcmp(*p, s->name) == 0)

return;

envinsert(s->name, s->u.ptr);

}

void

execinit(void)

{

char **p;

nextv = 0;

for(p = myenv; *p; p++)

envinsert(*p, stow(""));

symtraverse(S_VAR, ecopy);

envinsert(0, 0);

}

Envy*

buildenv(Job *j, int slot)

{

char **p, *cp, *qp;

Word *w, *v, **l;

int i;

char buf[256];

envupd("target", wdup(j->t));

if(j->r->attr&REGEXP)

envupd("stem",newword(""));

else

envupd("stem", newword(j->stem));

envupd("prereq", wdup(j->p));

sprint(buf, "%d", getpid());

envupd("pid", newword(buf));

sprint(buf, "%d", slot);

envupd("nproc", newword(buf));

envupd("newprereq", wdup(j->np));

envupd("alltarget", wdup(j->at));

l = &v;

v = w = wdup(j->np);

while(w){

cp = strchr(w->s, '(');

if(cp){

qp = strchr(cp+1, ')');

if(qp){

*qp = 0;

strcpy(w->s, cp+1);

l = &w->next;

w = w->next;

continue;

}

}

*l = w->next;

free(w->s);

free(w);

w = *l;

}

envupd("newmember", v);

/* update stem0 -> stem9 */

for(p = myenv; *p; p++)

if(strcmp(*p, "stem0") == 0)

break;

for(i = 0; *p; i++, p++){

if((j->r->attr&REGEXP) && j->match[i])

envupd(*p, newword(j->match[i]));

else

envupd(*p, newword(""));

}

return envy;

}