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Implement a simpler direct API for getting and setting numeric values in

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the SQL database. This is mostly because the lack of string handling makes
manipulation of queries difficult.
This commit is contained in:
Gavan Fantom
2007-12-26 14:57:16 +00:00
parent df2e38a3e9
commit de63ebf6ce
3 changed files with 53 additions and 0 deletions
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2
src/lsi/abi.h
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@@ -51,3 +51,5 @@ int vm_intfn_cmdsocket_write(void);
int vm_intfn_cmdsocket_prefix(void);
int vm_intfn_sql_query(void);
int vm_intfn_sql_query_1s(void);
int vm_intfn_sql_getvar(void);
int vm_intfn_sql_setvar(void);

2
src/lsi/abispec
View File

@@ -41,6 +41,8 @@ function cmdsocket_prefix
/* NOT_YET function_v sql_query */
function sql_query
function sql_query_1s
function sql_getvar
function sql_setvar
/*
* The ABI should be identified by a SHA1 hash of this file

49
src/lsi/vm.c
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@@ -596,6 +596,55 @@ int vm_intfn_sql_query_1s(void)
stack_poke(vm_current, 0, result); /* return value */
return 1;
}
int vm_intfn_sql_getvar(void)
{
int len;
char buf[VM_STRING_MAX];
char query[VM_STRING_MAX];
int result;
len = stack_get(vm_current, 1);
if (len >= VM_STRING_MAX) {
printf("Excessive string length - can't perform query\n");
return 1;
}
snprintf(buf, len+1, stack_getstr(vm_current, len, 1));
snprintf(query, VM_STRING_MAX, "SELECT value FROM vars WHERE name=\"%s\"", buf);
sql_query(query, strlen(query), &result);
/* XXX what to do with an error here? */
stack_poke(vm_current, 0, result); /* return value */
return 1;
}
int vm_intfn_sql_setvar(void)
{
int len, val;
char buf[VM_STRING_MAX];
char query[VM_STRING_MAX];
int result;
val = stack_get(vm_current, 1);
len = stack_get(vm_current, 2);
if (len >= VM_STRING_MAX) {
printf("Excessive string length - can't perform query\n");
return 1;
}
snprintf(buf, len+1, stack_getstr(vm_current, len, 2));
snprintf(query, VM_STRING_MAX, "INSERT OR REPLACE INTO vars VALUES(\"%s\", %d)", buf, val);
sql_query(query, strlen(query), &result);
/* XXX what to do with an error here? */
stack_poke(vm_current, 0, result); /* return value */
return 1;
}
#endif
int vm_intfn_beatdetect_read(void)