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lmdb-zig

Lightweight, fully-featured, idiomatic cross-platform Zig bindings to Lightning Memory-Mapped Database (LMDB).

LMDB is a tiny, extraordinarily fast Btree-based embedded KV database with some excellent properties:

  • Zero-copy lookup and iteration: the entire database is memory-mapped.
  • Transactions may create, drop, and interact with multiple named databases at once.
  • Multiple readers, single writer. Writers don't block readers, readers don't block writers.
  • Keys are lexicographically sorted by default. A custom key ordering may be defined per named database.
  • Zero maintenance: does not require any compaction, external processes, or background threads running.
  • Entire database is exposed as a single file accompanied by a lockfile. A single database file may comprise of multiple named databases.
  • Fully exploits the operating system's buffer cache given its memory mapping and compact size being a mere 32KB worth of object code.

Refer to the 12 extensive unit tests provided here for usage instructions and guidelines.

Built and tested against Zig's master branch over all possible optimization modes.

Motivation

These bindings were built in mind for utilizing LMDB as the underlying backend of a database project.

As a result, extensive effort was put into exposing and testing as many different aspects of LMDB's functionality as possible with an emphasis on minimal overhead, such as fixed memory map addressing, in-place cursor updates, duplicate keys, on-the-fly backups, crash recovery, etc.

Setup

These bindings were built with first-class support for the zigmod package manager.

To incorporate these bindings into your project, include the following into your project's zig.mod:

- type: gitpath: https://github.com/lithdew/lmdb-zig

Afterwards, run:

zigmod fetch

Status

Presently, these bindings completely cover the entire API surface for LMDB except for the list of methods provided below that were deemed unnecessary. In the case you require any of these methods exported, please file an issue describing your use case.

About

Lightweight, fully-featured, idiomatic cross-platform Zig bindings to Lightning Memory-Mapped Database (LMDB).

Resources

Readme
MIT license
Activity

Stars

90 stars

Watchers

2 watching

Forks

10 forks
Report repository

Releases

Packages

Used by

Contributors

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})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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Repository files navigation
lmdb-zig
Lightweight, fully-featured, idiomatic cross-platform Zig bindings to Lightning Memory-Mapped Database (LMDB).
LMDB is a tiny, extraordinarily fast Btree-based embedded KV database with some excellent properties:
  • Zero-copy lookup and iteration: the entire database is memory-mapped.
  • Transactions may create, drop, and interact with multiple named databases at once.
  • Multiple readers, single writer. Writers don't block readers, readers don't block writers.
  • Keys are lexicographically sorted by default. A custom key ordering may be defined per named database.
  • Zero maintenance: does not require any compaction, external processes, or background threads running.
  • Entire database is exposed as a single file accompanied by a lockfile. A single database file may comprise of multiple named databases.
  • Fully exploits the operating system's buffer cache given its memory mapping and compact size being a mere 32KB worth of object code.
Refer to the 12 extensive unit tests provided here for usage instructions and guidelines.
Built and tested against Zig's master branch over all possible optimization modes.
Motivation
These bindings were built in mind for utilizing LMDB as the underlying backend of a database project.
As a result, extensive effort was put into exposing and testing as many different aspects of LMDB's functionality as possible with an emphasis on minimal overhead, such as fixed memory map addressing, in-place cursor updates, duplicate keys, on-the-fly backups, crash recovery, etc.
Setup
These bindings were built with first-class support for the zigmod package manager.
To incorporate these bindings into your project, include the following into your project's zig.mod:
- type: gitpath: https://github.com/lithdew/lmdb-zig
Afterwards, run:
zigmod fetch
Status
Presently, these bindings completely cover the entire API surface for LMDB except for the list of methods provided below that were deemed unnecessary. In the case you require any of these methods exported, please file an issue describing your use case.
About
Lightweight, fully-featured, idiomatic cross-platform Zig bindings to Lightning Memory-Mapped Database (LMDB).
Resources
Readme
MIT license
Activity
Stars
90 stars
Watchers
2 watching
Forks
10 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
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var style = document.createElement('style');
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color-scheme: dark light;
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} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
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Repository files navigation
lmdb-zig
Lightweight, fully-featured, idiomatic cross-platform Zig bindings to Lightning Memory-Mapped Database (LMDB).
LMDB is a tiny, extraordinarily fast Btree-based embedded KV database with some excellent properties:
  • Zero-copy lookup and iteration: the entire database is memory-mapped.
  • Transactions may create, drop, and interact with multiple named databases at once.
  • Multiple readers, single writer. Writers don't block readers, readers don't block writers.
  • Keys are lexicographically sorted by default. A custom key ordering may be defined per named database.
  • Zero maintenance: does not require any compaction, external processes, or background threads running.
  • Entire database is exposed as a single file accompanied by a lockfile. A single database file may comprise of multiple named databases.
  • Fully exploits the operating system's buffer cache given its memory mapping and compact size being a mere 32KB worth of object code.
Refer to the 12 extensive unit tests provided here for usage instructions and guidelines.
Built and tested against Zig's master branch over all possible optimization modes.
Motivation
These bindings were built in mind for utilizing LMDB as the underlying backend of a database project.
As a result, extensive effort was put into exposing and testing as many different aspects of LMDB's functionality as possible with an emphasis on minimal overhead, such as fixed memory map addressing, in-place cursor updates, duplicate keys, on-the-fly backups, crash recovery, etc.
Setup
These bindings were built with first-class support for the zigmod package manager.
To incorporate these bindings into your project, include the following into your project's zig.mod:
- type: gitpath: https://github.com/lithdew/lmdb-zig
Afterwards, run:
zigmod fetch
Status
Presently, these bindings completely cover the entire API surface for LMDB except for the list of methods provided below that were deemed unnecessary. In the case you require any of these methods exported, please file an issue describing your use case.
About
Lightweight, fully-featured, idiomatic cross-platform Zig bindings to Lightning Memory-Mapped Database (LMDB).
Resources
Readme
MIT license
Activity
Stars
90 stars
Watchers
2 watching
Forks
10 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
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if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
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var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
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var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
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node.parentNode.replaceChild(frag, node);
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} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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zig.mod
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Repository files navigation
lmdb-zig
Lightweight, fully-featured, idiomatic cross-platform Zig bindings to Lightning Memory-Mapped Database (LMDB).
LMDB is a tiny, extraordinarily fast Btree-based embedded KV database with some excellent properties:
  • Zero-copy lookup and iteration: the entire database is memory-mapped.
  • Transactions may create, drop, and interact with multiple named databases at once.
  • Multiple readers, single writer. Writers don't block readers, readers don't block writers.
  • Keys are lexicographically sorted by default. A custom key ordering may be defined per named database.
  • Zero maintenance: does not require any compaction, external processes, or background threads running.
  • Entire database is exposed as a single file accompanied by a lockfile. A single database file may comprise of multiple named databases.
  • Fully exploits the operating system's buffer cache given its memory mapping and compact size being a mere 32KB worth of object code.
Refer to the 12 extensive unit tests provided here for usage instructions and guidelines.
Built and tested against Zig's master branch over all possible optimization modes.
Motivation
These bindings were built in mind for utilizing LMDB as the underlying backend of a database project.
As a result, extensive effort was put into exposing and testing as many different aspects of LMDB's functionality as possible with an emphasis on minimal overhead, such as fixed memory map addressing, in-place cursor updates, duplicate keys, on-the-fly backups, crash recovery, etc.
Setup
These bindings were built with first-class support for the zigmod package manager.
To incorporate these bindings into your project, include the following into your project's zig.mod:
- type: gitpath: https://github.com/lithdew/lmdb-zig
Afterwards, run:
zigmod fetch
Status
Presently, these bindings completely cover the entire API surface for LMDB except for the list of methods provided below that were deemed unnecessary. In the case you require any of these methods exported, please file an issue describing your use case.
About
Lightweight, fully-featured, idiomatic cross-platform Zig bindings to Lightning Memory-Mapped Database (LMDB).
Resources
Readme
MIT license
Activity
Stars
90 stars
Watchers
2 watching
Forks
10 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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lmdb.zig
zig.mod
zig.mod
Repository files navigation
lmdb-zig
Lightweight, fully-featured, idiomatic cross-platform Zig bindings to Lightning Memory-Mapped Database (LMDB).
LMDB is a tiny, extraordinarily fast Btree-based embedded KV database with some excellent properties:
  • Zero-copy lookup and iteration: the entire database is memory-mapped.
  • Transactions may create, drop, and interact with multiple named databases at once.
  • Multiple readers, single writer. Writers don't block readers, readers don't block writers.
  • Keys are lexicographically sorted by default. A custom key ordering may be defined per named database.
  • Zero maintenance: does not require any compaction, external processes, or background threads running.
  • Entire database is exposed as a single file accompanied by a lockfile. A single database file may comprise of multiple named databases.
  • Fully exploits the operating system's buffer cache given its memory mapping and compact size being a mere 32KB worth of object code.
Refer to the 12 extensive unit tests provided here for usage instructions and guidelines.
Built and tested against Zig's master branch over all possible optimization modes.
Motivation
These bindings were built in mind for utilizing LMDB as the underlying backend of a database project.
As a result, extensive effort was put into exposing and testing as many different aspects of LMDB's functionality as possible with an emphasis on minimal overhead, such as fixed memory map addressing, in-place cursor updates, duplicate keys, on-the-fly backups, crash recovery, etc.
Setup
These bindings were built with first-class support for the zigmod package manager.
To incorporate these bindings into your project, include the following into your project's zig.mod:
- type: gitpath: https://github.com/lithdew/lmdb-zig
Afterwards, run:
zigmod fetch
Status
Presently, these bindings completely cover the entire API surface for LMDB except for the list of methods provided below that were deemed unnecessary. In the case you require any of these methods exported, please file an issue describing your use case.
About
Lightweight, fully-featured, idiomatic cross-platform Zig bindings to Lightning Memory-Mapped Database (LMDB).
Resources
Readme
MIT license
Activity
Stars
90 stars
Watchers
2 watching
Forks
10 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
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try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Repository files navigation
lmdb-zig
Lightweight, fully-featured, idiomatic cross-platform Zig bindings to Lightning Memory-Mapped Database (LMDB).
LMDB is a tiny, extraordinarily fast Btree-based embedded KV database with some excellent properties:
  • Zero-copy lookup and iteration: the entire database is memory-mapped.
  • Transactions may create, drop, and interact with multiple named databases at once.
  • Multiple readers, single writer. Writers don't block readers, readers don't block writers.
  • Keys are lexicographically sorted by default. A custom key ordering may be defined per named database.
  • Zero maintenance: does not require any compaction, external processes, or background threads running.
  • Entire database is exposed as a single file accompanied by a lockfile. A single database file may comprise of multiple named databases.
  • Fully exploits the operating system's buffer cache given its memory mapping and compact size being a mere 32KB worth of object code.
Refer to the 12 extensive unit tests provided here for usage instructions and guidelines.
Built and tested against Zig's master branch over all possible optimization modes.
Motivation
These bindings were built in mind for utilizing LMDB as the underlying backend of a database project.
As a result, extensive effort was put into exposing and testing as many different aspects of LMDB's functionality as possible with an emphasis on minimal overhead, such as fixed memory map addressing, in-place cursor updates, duplicate keys, on-the-fly backups, crash recovery, etc.
Setup
These bindings were built with first-class support for the zigmod package manager.
To incorporate these bindings into your project, include the following into your project's zig.mod:
- type: gitpath: https://github.com/lithdew/lmdb-zig
Afterwards, run:
zigmod fetch
Status
Presently, these bindings completely cover the entire API surface for LMDB except for the list of methods provided below that were deemed unnecessary. In the case you require any of these methods exported, please file an issue describing your use case.
About
Lightweight, fully-featured, idiomatic cross-platform Zig bindings to Lightning Memory-Mapped Database (LMDB).
Resources
Readme
MIT license
Activity
Stars
90 stars
Watchers
2 watching
Forks
10 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
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try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Repository files navigation
lmdb-zig
Lightweight, fully-featured, idiomatic cross-platform Zig bindings to Lightning Memory-Mapped Database (LMDB).
LMDB is a tiny, extraordinarily fast Btree-based embedded KV database with some excellent properties:
  • Zero-copy lookup and iteration: the entire database is memory-mapped.
  • Transactions may create, drop, and interact with multiple named databases at once.
  • Multiple readers, single writer. Writers don't block readers, readers don't block writers.
  • Keys are lexicographically sorted by default. A custom key ordering may be defined per named database.
  • Zero maintenance: does not require any compaction, external processes, or background threads running.
  • Entire database is exposed as a single file accompanied by a lockfile. A single database file may comprise of multiple named databases.
  • Fully exploits the operating system's buffer cache given its memory mapping and compact size being a mere 32KB worth of object code.
Refer to the 12 extensive unit tests provided here for usage instructions and guidelines.
Built and tested against Zig's master branch over all possible optimization modes.
Motivation
These bindings were built in mind for utilizing LMDB as the underlying backend of a database project.
As a result, extensive effort was put into exposing and testing as many different aspects of LMDB's functionality as possible with an emphasis on minimal overhead, such as fixed memory map addressing, in-place cursor updates, duplicate keys, on-the-fly backups, crash recovery, etc.
Setup
These bindings were built with first-class support for the zigmod package manager.
To incorporate these bindings into your project, include the following into your project's zig.mod:
- type: gitpath: https://github.com/lithdew/lmdb-zig
Afterwards, run:
zigmod fetch
Status
Presently, these bindings completely cover the entire API surface for LMDB except for the list of methods provided below that were deemed unnecessary. In the case you require any of these methods exported, please file an issue describing your use case.
About
Lightweight, fully-featured, idiomatic cross-platform Zig bindings to Lightning Memory-Mapped Database (LMDB).
Resources
Readme
MIT license
Activity
Stars
90 stars
Watchers
2 watching
Forks
10 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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lmdb-zig
Lightweight, fully-featured, idiomatic cross-platform Zig bindings to Lightning Memory-Mapped Database (LMDB).
LMDB is a tiny, extraordinarily fast Btree-based embedded KV database with some excellent properties:
  • Zero-copy lookup and iteration: the entire database is memory-mapped.
  • Transactions may create, drop, and interact with multiple named databases at once.
  • Multiple readers, single writer. Writers don't block readers, readers don't block writers.
  • Keys are lexicographically sorted by default. A custom key ordering may be defined per named database.
  • Zero maintenance: does not require any compaction, external processes, or background threads running.
  • Entire database is exposed as a single file accompanied by a lockfile. A single database file may comprise of multiple named databases.
  • Fully exploits the operating system's buffer cache given its memory mapping and compact size being a mere 32KB worth of object code.
Refer to the 12 extensive unit tests provided here for usage instructions and guidelines.
Built and tested against Zig's master branch over all possible optimization modes.
Motivation
These bindings were built in mind for utilizing LMDB as the underlying backend of a database project.
As a result, extensive effort was put into exposing and testing as many different aspects of LMDB's functionality as possible with an emphasis on minimal overhead, such as fixed memory map addressing, in-place cursor updates, duplicate keys, on-the-fly backups, crash recovery, etc.
Setup
These bindings were built with first-class support for the zigmod package manager.
To incorporate these bindings into your project, include the following into your project's zig.mod:
- type: gitpath: https://github.com/lithdew/lmdb-zig
Afterwards, run:
zigmod fetch
Status
Presently, these bindings completely cover the entire API surface for LMDB except for the list of methods provided below that were deemed unnecessary. In the case you require any of these methods exported, please file an issue describing your use case.
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Lightweight, fully-featured, idiomatic cross-platform Zig bindings to Lightning Memory-Mapped Database (LMDB).
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