{"id":21125915,"url":"https://github.com/shirasawasama/javasharedmemory","last_synced_at":"2025-07-08T23:31:39.079Z","repository":{"id":66603486,"uuid":"592441536","full_name":"ShirasawaSama/JavaSharedMemory","owner":"ShirasawaSama","description":"Shared memory between Java and C++/Rust/Go processes.","archived":false,"fork":false,"pushed_at":"2024-03-16T06:39:00.000Z","size":87,"stargazers_count":18,"open_issues_count":0,"forks_count":2,"subscribers_count":4,"default_branch":"master","last_synced_at":"2024-04-16T14:13:17.838Z","etag":null,"topics":["cpp","ffi","interprocess","interprocess-communication","ipc","java","java-19","pure-java","shared-memory"],"latest_commit_sha":null,"homepage":"","language":"Java","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/ShirasawaSama.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null}},"created_at":"2023-01-23T18:34:57.000Z","updated_at":"2024-04-04T11:05:42.000Z","dependencies_parsed_at":"2023-07-11T04:45:21.855Z","dependency_job_id":"26d8ca04-9aee-48fa-81a8-b7f86bbff282","html_url":"https://github.com/ShirasawaSama/JavaSharedMemory","commit_stats":null,"previous_names":[],"tags_count":13,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ShirasawaSama%2FJavaSharedMemory","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ShirasawaSama%2FJavaSharedMemory/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ShirasawaSama%2FJavaSharedMemory/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/ShirasawaSama%2FJavaSharedMemory/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/ShirasawaSama","download_url":"https://codeload.github.com/ShirasawaSama/JavaSharedMemory/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":225470851,"owners_count":17479366,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["cpp","ffi","interprocess","interprocess-communication","ipc","java","java-19","pure-java","shared-memory"],"created_at":"2024-11-20T04:37:35.429Z","updated_at":"2024-11-20T04:37:35.833Z","avatar_url":"https://github.com/ShirasawaSama.png","language":"Java","funding_links":[],"categories":[],"sub_categories":[],"readme":"# JavaSharedMemory [![Jitpack](https://www.jitpack.io/v/ShirasawaSama/JavaSharedMemory.svg)](https://www.jitpack.io/#ShirasawaSama/JavaSharedMemory)\n\nShared memory between processes. (Java, C++, Rust, etc.) Based on Java 19 [Foreign Function \u0026 Memory API](https://openjdk.org/jeps/434)\n\nSupport Windows *(CreateFileMapping)*, Linux and macOS *(mmap and shmget)*.\n\n\u003e **Note**\n\u003e Compared with standard input and output (anonymous pipes) on Windows, more than 2x performance improvement.\n\n## Usage\n\n### Java\n\n```groovy\nrepositories {\n    maven { url 'https://www.jitpack.io' }\n}\n\ndependencies {\n    implementation 'com.github.ShirasawaSama:JavaSharedMemory:\u003cversion\u003e'\n}\n\ntasks.withType(JavaCompile).each {\n    it.options.compilerArgs.add('--enable-preview')\n}\n\n// kotlin script\n// tasks.withType\u003cJavaCompile\u003e {\n//     options.compilerArgs = options.compilerArgs + listOf(\"--enable-preview\")\n// }\n```\n\n```java\nimport cn.apisium.shm;\n\npublic class Main {\n    public static void main(String[] args) {\n        // var shm = SharedMemory.open(\"test\", 1024)\n        try (var shm = SharedMemory.create(\"test\", 1024)) {\n            var buf = shm.toByteBuffer();\n            buf.put(\"Hello, World!\".getBytes());\n        }\n    }\n}\n```\n\n### C++\n\n```bash\ngit submodule add https://github.com/ShirasawaSama/JavaSharedMemory.git\n```\n\nCMakeLists.txt:\n\n```CMakeLists.txt\nadd_subdirectory(JavaSharedMemory)\ntarget_link_libraries(${PROJECT_NAME} java_shared_memory)\n```\n\nmain.cpp:\n\n```cpp\n#include \u003cjshm.h\u003e\n\nint main() {\n    auto shm = jshm::shared_memory::create(\"test\", 1024);\n    // auto shm = jshm::shared_memory::open(\"test\", 1024);\n    strcpy((char*)shm-\u003eaddress(), \"Hello, World!\");\n    delete shm;\n}\n```\n\n## Author\n\nShirasawa\n\n## License\n\n[MIT](LICENSE)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fshirasawasama%2Fjavasharedmemory","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fshirasawasama%2Fjavasharedmemory","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fshirasawasama%2Fjavasharedmemory/lists"}