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Claim the db library is [apply {{} {
set cc [C]
$cc cflags -I. -I./vendor/tracy/public
$cc include "db.h"
$cc include "common.h"
$cc include "vendor/stb_ds.h"
$cc code {
typedef struct ListOfEdgeTo {
size_t capacityEdges;
size_t nEdges; // This is an estimate.
uint64_t edges[];
} ListOfEdgeTo;
typedef struct GenRc {
int16_t rc;
int gen: 15;
bool alive: 1;
} GenRc;
#include <pthread.h>
}
set dbCFd [open "db.c" r]; set dbC [read $dbCFd]; close $dbCFd
$cc code [lindex [regexp -inline {typedef struct Destructor \{.*\} Destructor;} $dbC] 0]
$cc code [lindex [regexp -inline {typedef struct DestructorSet \{.*\} DestructorSet;} $dbC] 0]
$cc code [lindex [regexp -inline {typedef struct Statement \{.*\} Statement;} $dbC] 0]
$cc code [lindex [regexp -inline {typedef struct Match \{.*\} Match;} $dbC] 0]
$cc code [lindex [regexp -inline {typedef struct Hold \{.*\} Hold;} $dbC] 0]
$cc code [lindex [regexp -inline {typedef struct StatementRefList \{.*\} StatementRefList;} $dbC] 0]
$cc code [lindex [regexp -inline {typedef struct AtomicallyVersionList \{.*\} AtomicallyVersionList;} $dbC] 0]
$cc code [lindex [regexp -inline {typedef struct AtomicallyVersion \{.*\} AtomicallyVersion;} $dbC] 0]
$cc code [lindex [regexp -inline {typedef struct Atomically \{.*\} Atomically;} $dbC] 0]
$cc code [lindex [regexp -inline {typedef struct Db \{.*\} Db;} $dbC] 0]
$cc argtype StatementRef { StatementRef $argname; sscanf(Jim_String($obj), "s%d:%d", &$argname.idx, &$argname.gen); }
$cc argtype MatchRef { MatchRef $argname; sscanf(Jim_String($obj), "m%d:%d", &$argname.idx, &$argname.gen); }
$cc proc clauseToJimObj {Clause* clause} Jim_Obj* {
Jim_Obj* termObjs[clause->nTerms];
for (int i = 0; i < clause->nTerms; i++) {
termObjs[i] = Jim_NewStringObj(interp, termPtr(clause->terms[i]),
termLen(clause->terms[i]));
}
return Jim_NewListObj(interp, termObjs, clause->nTerms);
}
$cc proc statementParentCount {Db* db StatementRef stmtRef} int {
Statement* stmt = statementAcquire(db, stmtRef);
if (stmt == NULL) { return -1; }
int ret = stmt->parentCount;
statementRelease(db, stmt);
return ret;
}
$cc proc statementPtrCount {Db* db StatementRef stmtRef} int {
Statement* stmt = statementAcquire(db, stmtRef);
if (stmt == NULL) { return -1; }
GenRc genRc = stmt->genRc;
int ret = genRc.rc - 1;
statementRelease(db, stmt);
return ret;
}
$cc proc clause {Db* db StatementRef stmtRef} Jim_Obj* {
Statement* stmt = statementAcquire(db, stmtRef);
if (stmt == NULL) { return Jim_NewStringObj(interp, "(null)", -1); }
Jim_Obj* ret = clauseToJimObj(statementClause(stmt));
statementRelease(db, stmt);
return ret;
}
$cc proc childMatches {Db* db StatementRef stmtRef} Jim_Obj* {
Statement* stmt = statementAcquire(db, stmtRef);
if (stmt == NULL) { return Jim_NewEmptyStringObj(interp); }
pthread_mutex_lock(&stmt->childMatchesMutex);
if (stmt->childMatches == NULL) {
pthread_mutex_unlock(&stmt->childMatchesMutex);
statementRelease(db, stmt);
return Jim_NewEmptyStringObj(interp);
}
int nChildren = 0;
Jim_Obj* childObjs[stmt->childMatches->nEdges];
for (int i = 0; i < stmt->childMatches->nEdges; i++) {
MatchRef child = { .val = stmt->childMatches->edges[i] };
childObjs[nChildren++] = Jim_ObjPrintf("m%d:%d", child.idx, child.gen);
}
pthread_mutex_unlock(&stmt->childMatchesMutex);
statementRelease(db, stmt);
return Jim_NewListObj(interp, childObjs, nChildren);
}
$cc proc matchAcq {Db* db MatchRef matchRef} Match* {
return matchAcquire(db, matchRef);
}
$cc proc matchRel {Db* db Match* match} void {
matchRelease(db, match);
}
$cc proc matchPtrCount {Db* db MatchRef matchRef} int {
Match* match = matchAcquire(db, matchRef);
GenRc genRc = match->genRc;
int ret = genRc.rc - 1;
matchRelease(db, match);
return ret;
}
$cc proc matchIsAlive {Db* db MatchRef matchRef} int {
Match* match = matchAcquire(db, matchRef);
GenRc genRc = match->genRc;
int alive = genRc.alive;
matchRelease(db, match);
return alive;
}
$cc proc childStatements {Db* db MatchRef matchRef} Jim_Obj* {
Match* match = matchAcquire(db, matchRef);
if (match == NULL) { return Jim_NewStringObj(interp, "", -1); }
pthread_mutex_lock(&match->childStatementsMutex);
if (match->childStatements == NULL) {
pthread_mutex_unlock(&match->childStatementsMutex);
matchRelease(db, match);
return Jim_NewEmptyStringObj(interp);
}
int nChildren = 0;
Jim_Obj* childObjs[match->childStatements->nEdges];
for (int i = 0; i < match->childStatements->nEdges; i++) {
StatementRef child = { .val = match->childStatements->edges[i] };
childObjs[nChildren++] = Jim_ObjPrintf("s%d:%d", child.idx, child.gen);
}
pthread_mutex_unlock(&match->childStatementsMutex);
matchRelease(db, match);
return Jim_NewListObj(interp, childObjs, nChildren);
}
$cc proc countAliveStatements {Db* db} int {
int count = 0;
for (int i = 1; i < 65536; i++) { // slot 0 is reserved
GenRc genRc = db->statementPool[i].genRc;
if (genRc.alive) {
count++;
}
}
return count;
}
$cc proc holds {Db* db} Jim_Obj* {
Jim_Obj* retObj = Jim_NewListObj(interp, NULL, 0);
mutexLock(&db->holdsMutex);
for (int i = 0; i < shlen(db->holds); i++) {
Hold* hold = &db->holds[i];
Statement* stmt = statementAcquire(db, hold->statement);
if (stmt == NULL) {
fprintf(stderr, "db-lib: holds: WARNING: held statement on (%s) is invalid! (s%d:%d)\n",
hold->key, hold->statement.idx, hold->statement.gen);
continue;
}
char* clauseStr = clauseToString(statementClause(stmt));
Jim_Obj* holdObjv[] = {
Jim_NewStringObj(interp, hold->key, -1),
Jim_NewIntObj(interp, hold->version),
Jim_ObjPrintf("s%d:%d", hold->statement.idx, hold->statement.gen),
Jim_NewStringObj(interp, clauseStr, -1)
};
statementRelease(db, stmt);
free(clauseStr);
Jim_Obj* holdObj = Jim_NewListObj(interp, holdObjv,
sizeof(holdObjv)/sizeof(holdObjv[0]));
Jim_ListAppendElement(interp, retObj, holdObj);
}
mutexUnlock(&db->holdsMutex);
return retObj;
}
$cc proc atomicallys {Db* db} Jim_Obj* {
Jim_Obj* retObj = Jim_NewListObj(interp, NULL, 0);
mutexLock(&db->atomicallysMutex);
for (int i = 0; i < sizeof(db->atomicallys)/sizeof(db->atomicallys[0]); i++) {
Atomically* atomically = &db->atomicallys[i];
if (atomically->key == NULL) { continue; }
// Count versions in allVersions list
int versionCount = 0;
AtomicallyVersionList* vl = atomically->allVersions;
while (vl != NULL) {
versionCount++;
vl = vl->next;
}
// Get latest converged version info
int latestConvergedNumber = -1;
if (atomically->latestConvergedVersion != NULL) {
latestConvergedNumber = atomically->latestConvergedVersion->number;
}
Jim_Obj* atomicallyObjv[] = {
Jim_NewStringObj(interp, atomically->key, -1),
Jim_NewIntObj(interp, latestConvergedNumber),
Jim_NewIntObj(interp, versionCount)
};
Jim_Obj* atomicallyObj = Jim_NewListObj(interp, atomicallyObjv,
sizeof(atomicallyObjv)/sizeof(atomicallyObjv[0]));
Jim_ListAppendElement(interp, retObj, atomicallyObj);
}
mutexUnlock(&db->atomicallysMutex);
return retObj;
}
return [$cc compile]
}}]
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